Based on checking the website, Calisen.com appears to be a UK-based company focused on energy infrastructure, specifically smart meters, renewable technology solar & battery, EV charging, and heat pumps.

They position themselves as leaders in the transition to a sustainable, smart energy future, aiming to reduce carbon footprints and empower energy users.

Their services range from asset provision and installation to maintenance and data collection, primarily working with energy suppliers across the UK.

Find detailed reviews on Trustpilot, Reddit, and BBB.org, for software products you can also check Producthunt.

IMPORTANT: We have not personally tested this company’s services. This review is based solely on information provided by the company on their website. For independent, verified user experiences, please refer to trusted sources such as Trustpilot, Reddit, and BBB.org.

Table of Contents

Calisen.com: A Deep Dive into Their Energy Infrastructure Vision

Calisen.com presents itself as a pivotal player in the UK’s energy transition, focusing on the infrastructure that underpins a smarter, more sustainable future.

Their strategy revolves around owning, installing, and managing critical energy assets.

They emphasize their role in driving down carbon emissions and empowering consumers through innovative technology.

The Foundation: Smart Metering and Data Services

At the heart of Calisen’s operations is smart metering.

They are a significant owner and manager of smart meters across Great Britain, providing a comprehensive service from asset provision to installation, maintenance, and crucial data collection. Serpempire.com Reviews

Asset Provision: Calisen acquires and manages smart meter assets, which are then deployed to homes and businesses. This ownership model allows them to scale their operations and secure long-term contracts with energy suppliers.
Installation & Maintenance: They undertake the physical installation of smart meters, ensuring they are correctly integrated into properties. Post-installation, they are responsible for ongoing maintenance, which is critical for the reliable functioning of these devices.
Data Collection & Management: Smart meters generate vast amounts of data on energy consumption. Calisen, through its Advizzo SaaS platform, specializes in turning this raw data into actionable insights for energy companies.
- Advizzo Platform: This platform is highlighted as a market-leading SaaS solution capable of transforming smart meter data into “proven impact at scale.” This implies sophisticated analytics and reporting capabilities that can help energy suppliers understand customer behavior and optimize energy usage.
- Impact at Scale: The focus on “impact at scale” suggests that their data solutions are designed for large customer bases, allowing energy companies to implement widespread efficiency programs based on data-driven insights.

Expanding Horizons: Renewable Technology and Electrification

Beyond smart metering, Calisen is actively diversifying into other key areas of sustainable energy, recognizing the broader shifts in energy consumption and production.

Solar & Battery Solutions: They are involved in the installation of solar panels and battery storage systems, enabling consumers to generate and store their own renewable energy. This is a crucial step towards decentralized energy generation and reducing reliance on traditional grids.
- Plug Me In Service: This branded service specifically focuses on connecting customers to more sustainable energy solutions through solar and battery installations, alongside EV chargers and heat pumps.
EV Charging Infrastructure: With the rapid growth of electric vehicles, the demand for charging infrastructure is escalating. Calisen is positioning itself to provide EV charger point installations, supporting the transition away from fossil-fuel-powered transport.
- Crucial for Adoption: The availability of convenient and reliable EV charging is a major factor in accelerating EV adoption, and Calisen’s involvement helps address this infrastructure gap.
Electrification of Heat Heat Pumps: As part of the broader decarbonization efforts, replacing traditional gas boilers with electric heat pumps is a significant initiative. Calisen’s entry into heat pump installations aligns with this national goal, contributing to a greener heating sector.
- Reducing Carbon Footprint: Heat pumps are highly efficient and significantly reduce the carbon footprint associated with home heating, a major contributor to greenhouse gas emissions.

Calisen.com’s Business Model: Ownership, Financing, and Partnerships

Calisen’s operational model emphasizes ownership and financing, which are critical components of their ability to scale and deliver their services.

Asset Ownership: By owning the smart metering infrastructure, they secure long-term revenue streams through rental agreements or service contracts with energy suppliers. This model provides stability and allows for strategic investment in expanding their asset base.
Financing Capability: The website explicitly mentions their “financing capability” as a tool to help consumers upgrade to smart technology. This is a point that requires careful consideration from an Islamic perspective, as conventional financing often involves interest riba.
- Ethical Financing: For individuals and entities seeking to engage with Calisen, it would be imperative to inquire about the specific financing mechanisms available and ensure they are compliant with Islamic principles, such as murabaha cost-plus financing or ijarah leasing, which avoid interest. Without explicit details, it’s impossible to confirm adherence to these principles.
Partnerships with Energy Suppliers: Calisen operates on behalf of energy suppliers, indicating a business-to-business B2B model where they serve as an essential infrastructure partner.
- Examples: News articles on their site mention partnerships with major players like Octopus Energy, accelerating smart meter rollouts, which suggests significant collaborations within the energy sector. For instance, a news item from February 10, 2025, highlights “Octopus Energy and Calisen Accelerate Smart Meter Rollout,” underscoring their role in large-scale deployments.
- Market Share: Given their claim as “one of Great Britain’s largest owner and manager of smart meters,” it’s clear they hold a substantial market share in this specific segment, demonstrating their influence and reach within the UK energy industry.

Calisen’s Commitment to Sustainability and Social Impact

Beyond their core business operations, Calisen highlights a commitment to broader sustainability goals and social responsibility through various initiatives.

Driving UK Climate Goals: They explicitly state their role in helping the UK achieve its climate targets, aligning their business initiatives with national environmental objectives.
Calisen Impact Charitable Trust: This trust is a significant indicator of their social commitment. It funds initiatives focused on:
- Sustainable Energy Solutions: Supporting projects that advance renewable energy and energy efficiency.
- Inclusive, Safe, and Diverse Educational and Work Environments: This indicates a broader social focus beyond just energy, promoting positive community development.
- Economic and Social Development: Their aim is to tailor initiatives to the needs of the communities they serve, suggesting a localized and responsive approach to social impact. For example, their “Eco-Schools partnership update” from November 8, 2024, and supporting “The Great Big School Clean Initiative” on March 11, 2025, illustrate direct engagement with educational and environmental programs.
“Racing to Build a Smarter Future”: This tagline encapsulates their urgency and ambition, reflecting a belief that rapid change is necessary to achieve energy sustainability.

Calisen.com Cons Potential Areas for Concern

While Calisen.com presents a strong case for its role in sustainable energy, several aspects warrant a deeper look, particularly from an ethical and consumer-centric perspective.

It’s important to approach any large-scale utility or infrastructure provider with a critical lens, ensuring transparency and fairness. Ink-trader.com Reviews

Lack of Direct Consumer Pricing and Service Transparency

One immediate observation is the absence of direct consumer pricing or detailed service breakdowns on their website.

Calisen primarily operates as a B2B entity, working “on behalf of energy suppliers.”

Indirect Consumer Impact: This means consumers interact with Calisen’s services indirectly through their energy provider. The specific terms, conditions, and costs associated with Calisen’s infrastructure like smart meters or EV chargers are likely embedded within the contracts consumers sign with their energy suppliers.
Information Asymmetry: This indirect relationship can create information asymmetry. Consumers might not fully understand which components of their energy service are managed by Calisen versus their primary energy supplier.
Difficulty in Comparison: Without transparent pricing or service packages aimed directly at the end-user, it’s challenging for individual consumers to compare Calisen’s offerings with other potential providers or understand the value proposition. For instance, if an EV charger is installed by Calisen, the consumer’s contract will be with their energy provider, not directly with Calisen, potentially complicating inquiries about specific device warranties or service level agreements.

Focus on “Financing Capability” Without Detailed Islamic Compliance

The website mentions Calisen’s “financing capability” for helping consumers upgrade to smart technology.

This is a critical area for concern from an Islamic finance perspective.

The Riba Interest Prohibition: Islamic finance strictly prohibits riba, which includes any form of interest, whether charged on loans or embedded in financial transactions. Conventional financing models, especially for large infrastructure projects, often rely heavily on interest-bearing debt.
Lack of Specifics: The website does not provide any specific details on how this “financing capability” is structured. It doesn’t mention takaful Islamic insurance, murabaha cost-plus sale, ijarah leasing, or any other Shariah-compliant financial instruments.
Potential for Non-Compliance: Without this transparency, there’s a strong possibility that their financing models are conventional and involve interest, which would make direct engagement with these specific financial offerings impermissible for Muslims.
Consumer Due Diligence: For a Muslim consumer, it would be essential to request explicit details about any financial product offered by Calisen or through their partners to ensure it’s free from riba. Simply being “sustainable” in terms of energy does not automatically equate to “sustainable” in terms of ethical finance.

Dependence on Energy Supplier Ecosystem

Calisen’s business model is deeply integrated with and dependent on the existing energy supplier ecosystem in the UK. Flixbus.se Reviews

Limited Consumer Choice: As a B2B provider, individual consumers do not have the option to choose Calisen directly for their smart meter installation or other services. Their services are deployed based on agreements with energy companies.
Impact of Supplier Changes: If a consumer switches energy suppliers, the management or servicing of their Calisen-installed assets might transfer seamlessly, but the underlying contractual relationship remains with the new supplier, not directly with Calisen. This can sometimes lead to confusion regarding responsibility for maintenance or data issues.
Regulatory Environment: Their operations are heavily influenced by UK energy regulations and government mandates regarding smart meter rollouts. Any significant changes in these regulations could impact their business model and the services they provide. For example, the “4G Communications Hub Rollout” February 14, 2025 and “Virtual WAN Launch in 2026” May 1, 2025 news items underscore their deep integration with mandated technological upgrades.

Potential for Data Privacy Concerns General for Smart Metering

While Calisen highlights their data platform Advizzo as a tool for “proven impact at scale,” the nature of smart meter data collection inherently raises privacy considerations, regardless of the provider.

Granular Consumption Data: Smart meters collect highly granular data on energy consumption, sometimes down to 30-minute intervals. This data can potentially reveal patterns about household occupancy, daily routines, and appliance usage.
Data Usage and Sharing: While Calisen states Advizzo turns data into insights for energy companies, the specifics of how this data is used, stored, aggregated, and potentially shared even in anonymized form with third parties are not explicitly detailed on their public-facing website.
Consumer Control: Consumers might have limited direct control over how their granular smart meter data is processed by third-party infrastructure providers like Calisen, beyond what their primary energy supplier’s privacy policy dictates. This is a systemic concern with smart meters generally, but one that falls within Calisen’s operational domain. It’s reported that as of Q4 2023, approximately 57% of meters in Great Britain are smart meters, indicating the vast amount of data being collected and managed by companies like Calisen.

No Direct Customer Support Channel Highlighted

The website features a contact form for inquiries but doesn’t prominently display a direct customer support hotline or a dedicated portal for individual consumers.

B2B Focus: This reinforces their B2B operational model. Most likely, consumers with issues related to their Calisen-installed equipment would need to contact their energy supplier first, who would then liaise with Calisen.
Potential for Delays: This indirect route could potentially lead to longer resolution times for consumer issues, as inquiries need to be routed through an intermediary.
Lack of Immediate Assistance: For urgent issues or technical queries about the smart meter or other installed equipment, the absence of a direct, clear support channel for end-users could be frustrating.

Calisen.com Alternatives: Ethical & Sustainable Energy Choices

When seeking sustainable energy solutions, it’s crucial to explore alternatives that align with ethical principles, particularly those that avoid riba interest and promote transparency. While Calisen focuses on infrastructure for smart energy, direct alternatives for individual consumers would largely involve choosing energy suppliers with strong green credentials and exploring self-sufficiency options.

1. Choosing Ethical Energy Suppliers

Focus on selecting energy providers who prioritize renewable sources and potentially offer transparent, Shariah-compliant financing options for specific products, though this is less common.

Renewable-Only Tariffs: Many energy suppliers in the UK offer tariffs that guarantee 100% renewable electricity. Look for suppliers who procure electricity directly from wind, solar, or hydro sources.
- Example: Companies like Ecotricity or Good Energy explicitly state their commitment to green energy generation. Researching their energy mix and investment strategies is key.
Community Energy Schemes: Investigate local community energy projects that allow direct investment or participation in renewable energy generation, such as solar farms or wind cooperatives. These often have a more transparent and community-centric financial model.
Supplier Transparency: Choose suppliers who are transparent about their energy sources, pricing structures, and environmental impact. Look for those with strong environmental ratings from independent bodies.

2. Investing in Home-Based Renewable Energy Halal Financing

For those looking to install solar panels, battery storage, or EV chargers, seeking out installers who offer halal financing options or prioritizing cash purchases is the best approach. Dubaivisa.co.za Reviews

Direct Cash Purchase: The most straightforward and Islamically permissible way to acquire renewable energy infrastructure is through direct cash purchase, avoiding any form of debt.
Murabaha Cost-Plus Financing: Seek out specialized Islamic finance providers or conventional installers willing to structure a murabaha agreement. In this model, the financier buys the solar panels/equipment and then sells them to you at a pre-agreed mark-up, with deferred payments, but without charging interest.
Ijarah Leasing: An ijarah agreement allows you to lease the equipment from a financier, with ownership remaining with the financier until the end of the lease term, after which ownership may transfer. This is an Islamic leasing model that avoids interest.
Shariah-Compliant Funds: Explore investing in Shariah-compliant renewable energy funds or ethical investment platforms that finance green projects without riba.
Reputable Solar & EV Charger Installers: Research local installers with strong reputations. Engage them directly to understand their financing options and explain your preference for riba-free solutions. Some may be open to discussing alternative payment structures or partnering with Islamic finance institutions.

3. Energy Efficiency & Conservation Sunnah-Inspired

Reducing energy consumption is a fundamental step towards sustainability and aligns with the Islamic principle of avoiding waste israf. This is perhaps the most impactful and universally applicable alternative.

Home Insulation & Draught-Proofing: Investing in good insulation for walls, lofts, and floors, along with effective draught-proofing, can significantly reduce heating and cooling demands. This is a direct, long-term saving.
LED Lighting: Switching to LED bulbs throughout your home can reduce lighting energy consumption by up to 90% compared to incandescent bulbs, and 60-70% compared to CFLs.
Efficient Appliances: When purchasing new appliances refrigerators, washing machines, ovens, opt for those with high energy efficiency ratings e.g., A+++.
Behavioral Changes:
- Switching off lights: Simple act of turning off lights when leaving a room.
- Unplugging electronics: Devices in standby mode still draw power “phantom load”. Unplugging them or using smart power strips can save energy.
- Lowering thermostat: Reducing heating by just 1-2 degrees Celsius can lead to significant energy savings.
- Washing clothes efficiently: Using colder water cycles and only running full loads.
Smart Home Devices Ethical Use: While Calisen focuses on smart meters, consumers can independently adopt smart thermostats or smart plugs to manage energy use more efficiently. Ensure these devices are used responsibly and don’t lead to excessive consumption or privacy concerns.
- Data Control: Opt for smart home devices that offer transparent data policies and allow you to control how your energy consumption data is used.

4. Community and Government Programs

Explore local community initiatives or government grants aimed at promoting energy efficiency or renewable energy adoption.

Government Grants: In the UK, various government schemes e.g., Boiler Upgrade Scheme for heat pumps, ECO4 scheme for energy efficiency improvements provide financial support for adopting greener technologies. Check eligibility criteria.
Local Council Initiatives: Many local councils offer advice, workshops, or even small grants for residents looking to improve home energy efficiency.
Energy Audits: Consider a professional home energy audit to identify areas of energy waste and prioritize improvements. Some local authorities or energy suppliers offer these for free or at a subsidized rate.

By focusing on these ethical alternatives, individuals can contribute to a more sustainable energy future while remaining true to Islamic financial principles and promoting responsible consumption.

How to Cancel a Calisen.com Subscription Indirect Process

Based on the information on Calisen.com, it’s highly unlikely that an individual consumer would have a direct “subscription” with Calisen.com in the traditional sense.

Calisen operates primarily as a business-to-business B2B provider, meaning they contract with energy suppliers like Octopus Energy, as seen in their news releases to provide and manage smart meters and other energy infrastructure. Pashawatches.com Reviews

Therefore, if you are a homeowner or tenant and believe you need to “cancel” something related to Calisen’s services, your process will invariably involve your primary energy supplier.

Here’s a breakdown of how this indirect process would typically work:

1. Identify Your Energy Supplier

Your first and most crucial step is to determine which energy company supplies your electricity and/or gas. This is the company you pay your bills to.

Examples include British Gas, E.ON, ScottishPower, EDF Energy, OVO Energy, Octopus Energy, etc.

2. Understand Your Contract with Your Energy Supplier

Review your contract and terms and conditions with your energy supplier. Sweden.thermomix.com Reviews

Smart Meter Terms: Most energy supplier contracts will outline terms related to the installation and management of smart meters. Calisen’s services installation, maintenance, data collection are typically an integrated part of what your energy supplier offers.
Installed Equipment: If Calisen installed a specific piece of equipment like an EV charger or heat pump at your property on behalf of your energy supplier, the agreement for that equipment’s usage and servicing will be with your energy supplier.
No Direct “Calisen” Line Item: You will likely not see “Calisen” listed as a separate charge or subscription on your energy bill. Their costs are bundled into your overall energy tariff or any specific product/service agreement you have with your energy provider.

3. Contact Your Energy Supplier Directly

This is the primary channel for any inquiries or actions related to Calisen’s services at your property.

Explain Your Request: Clearly explain what you are trying to “cancel” or change.
- Refusal of Smart Meter: If you do not yet have a smart meter and wish to refuse its installation, contact your energy supplier. While smart meters are largely mandated in the UK, suppliers usually have procedures for refusal, though this may impact available tariffs.
- Removal of Smart Meter: If you already have a smart meter and wish to revert to a traditional meter, contact your energy supplier. Be aware that this is generally not straightforward, as smart meters are the standard, and there might be costs involved, and your energy supplier may not be obligated to replace it. According to the UK government’s smart meter rollout plan, by the end of 2025, it’s aimed for every household to be offered a smart meter, making reversal an increasingly niche request.
- Issues with Installed Equipment: If you have an EV charger or heat pump installed by Calisen via your supplier and have issues, contact your energy supplier for warranty, repair, or removal queries.
Customer Service Channels: Use your energy supplier’s official customer service channels:
- Phone Number: Look for the customer service number on your bill or their official website.
- Online Chat/Portal: Many suppliers offer online chat or dedicated customer portals for managing your account and raising queries.
- Email/Mail: For formal requests, consider sending an email or registered letter for a clear record.

4. Be Prepared for Potential Challenges

Smart Meter Mandate: The UK government has a strong push for smart meter adoption. Energy suppliers are largely obligated to offer and install them. Refusing or removing one might be difficult or lead to fewer tariff options.
Contractual Obligations: Depending on your contract with your energy supplier, there might be terms preventing easy cancellation or removal of installed equipment, especially if it was provided at a subsidized rate.
Intermediary Role: Remember, your energy supplier acts as the intermediary. They will contact Calisen or their own internal teams to address your request regarding equipment or services provided by Calisen.

In essence, because Calisen operates behind the scenes, any “cancellation” related to their services will be handled through your direct relationship with your energy supplier.

How to Cancel Calisen.com Free Trial Unlikely for Consumers

Similar to the “subscription” concept, it is highly improbable that an individual consumer would have a “free trial” directly with Calisen.com.

Calisen’s services, such as smart meter installation, data platform access Advizzo, and renewable technology installations, are generally offered to and managed for energy suppliers or large commercial partners, not directly to residential customers on a trial basis.

Why a Consumer Free Trial is Unlikely

B2B Business Model: Calisen operates predominantly as a business-to-business B2B entity. Their core offerings are large-scale infrastructure deployment and data management solutions for energy companies. These are not consumer-facing products that would typically come with a “free trial” for individual households.
Infrastructure, Not Software for End-Users: While they mention a “SaaS Data Platform” Advizzo, this platform is designed for energy companies to analyze smart meter data, not for individual consumers to trial. An energy supplier might trial the Advizzo platform, but an individual consumer would not.
Integrated Services: If a smart meter or EV charger is installed at your home through your energy supplier, it’s part of a service agreement, not a trial. You wouldn’t typically “trial” a physical meter or charging point in the same way you would a streaming service or software.
No Consumer-Facing “Trial” Sign-Up: The Calisen.com website does not feature any sections or calls to action for individual consumers to sign up for a free trial of any service or product. All contact forms and information are geared towards business inquiries.

What You Might Be Thinking Of Common Misconceptions

If you are a consumer searching for “Calisen.com free trial,” you might be mistaking: Apexaccountants.tax Reviews

Promotional Offers from Your Energy Supplier: Your energy supplier might have offered you a “free smart meter installation” or a trial period for a specific energy tariff that requires a smart meter. In this case, the “free trial” is with your energy supplier, and any terms of cancellation or change would be handled directly by them.
Pilot Programs or Early Adopter Incentives: In some cases, energy companies or government programs might run pilot schemes for new technologies like specific types of smart meters or EV chargers which could be perceived as a “trial.” Again, these would be managed by the offering entity, not directly by Calisen.
General Smart Meter Rollout: The UK’s smart meter rollout is a nationwide initiative. When a smart meter is installed, it’s typically part of this national program, not a “free trial” that can be opted out of easily.

What to Do if You Have Concerns

If you have concerns about any equipment installed by Calisen or services managed by them even if you perceive it as a “trial”, the correct course of action is to contact your primary energy supplier.

Clarify Your Agreement: Ask your energy supplier to clarify the terms of any smart meter or other equipment installed at your property.
Inquire About Removal/Change: If you wish to remove or change the equipment, discuss the options and any potential costs or implications with your energy supplier.

In summary, for individual consumers, the concept of a “Calisen.com free trial” is not applicable, given their B2B operational model.

Any related inquiries should always be directed to your energy provider.

Calisen.com Pricing: An Indirect Cost to Consumers

Calisen.com, as a business-to-business B2B entity, does not publish direct consumer pricing for its services.

Instead, their pricing model is based on contracts with energy suppliers, who then integrate these costs into the tariffs and services they offer to end-consumers. Presence.uk Reviews

Therefore, the “pricing” of Calisen’s services is an indirect cost that households pay through their energy bills.

How Calisen’s Costs Are Integrated

Asset Ownership Model: Calisen owns and manages a vast portfolio of smart meters and other energy infrastructure assets. They lease or provide these assets to energy suppliers. The cost to the energy supplier is typically a service fee or a lease payment for each meter or piece of equipment.
- Long-Term Contracts: These are often long-term contracts, providing stable revenue streams for Calisen and predictable costs for energy suppliers. For example, as of 2023, Calisen managed over 11 million smart meters in the UK, representing a significant scale of operations and corresponding contractual relationships.
Installation and Maintenance Fees: Energy suppliers pay Calisen for the installation and ongoing maintenance of the smart meters and other equipment. These operational costs are also factored into the supplier’s overall cost base.
Data Platform Advizzo Subscriptions: Energy suppliers that use Calisen’s Advizzo SaaS platform pay a subscription fee for its data analytics and management capabilities. This is a recurring operational cost for the supplier.
Renewable Technology Installation Fees: For solar & battery, EV charging, and heat pump installations, Calisen charges the energy supplier or specific commercial clients for the equipment and installation services.

Impact on Consumer Bills

Ultimately, these costs incurred by energy suppliers for Calisen’s services are recuperated through the energy tariffs charged to consumers.

No Itemized Calisen Charge: You will not see a line item on your energy bill explicitly for “Calisen services.” Instead, these costs are diffused across:
- Unit Rates: The per-unit cost of electricity and gas p/kWh.
- Standing Charges: The daily fixed charge for being connected to the energy grid.
- Specific Product Charges: If you opted for a financed EV charger or a heat pump through your energy supplier, its cost would be integrated into that specific product agreement or an additional monthly charge.
Regulatory Framework: The overall costs that energy suppliers can pass on to consumers are also influenced by the UK energy regulator Ofgem and the competitive market. While suppliers have costs from providers like Calisen, they must still offer competitive tariffs to attract and retain customers.
Government Initiatives: The national smart meter rollout, which Calisen plays a significant role in, is a government-backed initiative. While there’s a cost associated with it, the long-term benefits are expected to include better energy management and reduced network costs, which theoretically should benefit consumers. The government’s 2023 Smart Meter Annual Report noted an estimated £5.6 billion in net benefits from the rollout over its lifetime.

Transparency Challenges for Consumers

The indirect nature of Calisen’s pricing presents a transparency challenge for consumers.

It’s impossible for an individual to directly compare Calisen’s “price” with competitors because they don’t operate on a direct-to-consumer model.

Consumers can only compare the total tariffs offered by different energy suppliers, which encompass all their operational costs, including those from infrastructure partners like Calisen. Dangleit.com Reviews

For those concerned about financial ethics, the opaque nature of these integrated costs means it’s difficult to ascertain if any part of the underlying financing models used by Calisen or their energy supplier partners involves riba. Therefore, the safest approach for Muslim consumers is to focus on energy suppliers who clearly state their commitment to ethical practices and to use cash or Shariah-compliant financing for any direct purchases of renewable energy equipment.

Calisen.com vs. Competitors in the UK Energy Infrastructure Space

While they are a significant player, particularly in smart metering, they face competition from various angles, including other infrastructure providers, energy suppliers’ in-house capabilities, and specialized renewable technology installers.

Key Competitors and Market Dynamics

Other Smart Meter Asset Providers MAPs:
- Lowri Beck now part of SMS plc: SMS plc is a major integrated energy infrastructure company in the UK. They own and manage smart meter assets, provide meter installation and maintenance services, and also offer data services. SMS plc is a direct competitor in the smart meter asset provision space. As of their H1 2023 results, SMS plc reported 5 million total smart meters installed, indicating a comparable scale to Calisen in this segment.
- Energy Assets Group: Another prominent player providing asset management, metering services, and utility network solutions across gas, electricity, and water. They also offer smart metering and data services.
- Flow Group: While smaller, companies like Flow Group also operate in smart meter deployment and related services.
- Calisen’s Edge: Calisen emphasizes its scale, claiming to be “one of Great Britain’s largest owner and manager of smart meters.” Their strategic partnerships, like the one with Octopus Energy announced February 10, 2025, underscore their market penetration and operational capacity for large-scale rollouts.
Energy Suppliers’ In-House Capabilities:
- Some of the larger energy suppliers e.g., British Gas, E.ON have historically invested in their own internal metering and installation teams. While they may still outsource to companies like Calisen, they also maintain some in-house capabilities.
- Hybrid Approach: Many suppliers adopt a hybrid approach, using their own teams for some installations and outsourcing to third-party MAPs like Calisen for others, especially during periods of high demand or for specific geographical regions.
Renewable Technology Installers Solar, EV Charging, Heat Pumps: Hapgroup.co.uk Reviews
- Specialized Installers: The market for solar panels, battery storage, EV chargers, and heat pumps is highly fragmented, with numerous specialized local and national installers.
- Electric Centre, Myenergi, Pod Point EV: These are examples of companies or brands specializing in specific renewable tech or EV charging. Calisen, through its “Plug Me In” service, is entering a competitive field here.
- Traditional HVAC Companies: Many existing heating, ventilation, and air conditioning HVAC companies are pivoting to offer heat pump installations.
- Calisen’s Differentiator: Calisen’s advantage here is its existing relationships with energy suppliers and its integrated infrastructure approach. They can potentially offer a more seamless end-to-end solution to energy companies looking to diversify their offerings to customers, rather than just being a standalone installer. Their existing infrastructure network can also be leveraged for new services.
Data Analytics and SaaS Platforms:
- Utilities-Focused Software Providers: Companies like Smart DCC Data Communications Company manage the national smart meter network’s data flow. Beyond that, various software companies offer analytics and customer engagement platforms for utilities.
- In-House Data Science Teams: Large energy suppliers also have their own data science and analytics teams.
- Calisen’s Advizzo: Calisen’s Advizzo platform competes by focusing on “turning smart meter data into proven impact at scale.” This suggests a specialized capability in driving behavioral change or operational efficiency from granular data.

Calisen’s Competitive Edge

Integrated Offering: Calisen’s strength lies in its ability to offer a comprehensive suite of services – from asset ownership and installation to maintenance and data analytics – under one roof. This “full-stack” approach can be attractive to energy suppliers seeking a single partner for multiple infrastructure needs.
Scale and Experience: Their significant market share in smart metering over 11 million meters under management provides them with economies of scale, operational expertise, and a proven track record.
Focus on the UK Market: By primarily focusing on the UK, they can specialize in local regulations and market dynamics.
Strategic Partnerships: Their ability to forge and maintain partnerships with major energy suppliers is crucial for securing large-scale rollout contracts.

Frequently Asked Questions

What is Calisen.com?

Calisen.com is a UK-based company that owns, installs, and manages essential energy infrastructure assets.

They specialize in smart metering, data services through their Advizzo platform, solar and battery installations, EV charging infrastructure, and the electrification of heat heat pumps for a more sustainable energy future.

Is Calisen.com a direct energy supplier for consumers?

No, Calisen.com is not a direct energy supplier for individual consumers.

They operate on a business-to-business B2B model, partnering with and providing services to energy suppliers across the UK. Vauntdesign.com Reviews

Consumers interact with Calisen’s services indirectly through their primary energy provider.

How does Calisen.com contribute to sustainable energy?

Calisen.com contributes to sustainable energy by deploying smart meters that enable efficient energy use, installing renewable technologies like solar panels and EV chargers, and facilitating the adoption of heat pumps, all of which aim to reduce the UK’s carbon footprint and transition to cleaner energy sources.

Does Calisen.com install smart meters directly for homeowners?

No, Calisen.com typically installs smart meters for homeowners on behalf of energy suppliers.

If you are getting a smart meter installed, it will be arranged by your energy provider, even if Calisen is the company carrying out the installation.

What is the Calisen Impact Charitable Trust?

The Calisen Impact Charitable Trust is an initiative funded by Calisen that supports charitable initiatives focused on sustainable energy solutions, fostering inclusive and diverse educational and work environments, and driving economic and social development in the communities they serve. Heatplumbdrain.co.uk Reviews

How does Calisen.com’s Advizzo platform work?

The Advizzo platform is Calisen’s market-leading SaaS Software as a Service solution.

It turns smart meter data into actionable insights and proven impact at scale for energy companies, helping them understand consumer behavior, optimize energy usage programs, and drive efficiency.

It is designed for energy suppliers, not individual consumers.

Does Calisen.com offer financing options for home energy upgrades?

Yes, Calisen.com mentions having a “financing capability” to help consumers upgrade to smart technology. However, the specific details of these financing options are not explicitly outlined on their public website, and it’s essential to inquire about their structure to ensure they are riba-free interest-free from an Islamic finance perspective.

Can I choose Calisen.com to install my EV charger or solar panels?

You cannot directly choose Calisen.com as an individual consumer. Gardenhouse24.co.uk Reviews

Their “Plug Me In” service for solar & battery, EV chargers, and heat pumps is provided to their energy supplier partners, who then offer these installations to their customers.

You would typically arrange this through your existing energy supplier.

What are the main benefits of Calisen.com’s services?

The main benefits of Calisen.com’s services, from a broad perspective, include enabling smarter energy management through advanced metering, accelerating the adoption of renewable energy technologies, contributing to carbon footprint reduction, and providing critical data insights for energy efficiency.

What are the potential drawbacks or concerns with Calisen.com?

Potential drawbacks include a lack of direct consumer-facing pricing or service transparency, the potential for conventional financing models involving riba given their “financing capability” mention, and the indirect nature of their customer support as they primarily serve energy suppliers.

How do I contact Calisen.com if I have an issue with my smart meter?

If you have an issue with your smart meter or any equipment installed by Calisen, you should contact your primary energy supplier. Hiwaldo.com Reviews

As Calisen operates on a B2B basis, your energy supplier is your direct point of contact for all service, maintenance, or technical queries.

Is Calisen.com involved in the UK’s 4G Communications Hub Rollout?

Yes, Calisen.com is actively involved in and supporting the UK’s 4G Communications Hub Rollout, as indicated by their news releases.

This initiative is crucial for upgrading the infrastructure that supports smart meter communication.

What kind of data does Calisen.com collect from smart meters?

Calisen.com collects granular energy consumption data from smart meters.

Through their Advizzo platform, they process this data to provide insights to energy companies, helping them manage energy usage patterns and improve efficiency programs. Pesthublondon.co.uk Reviews

Does Calisen.com manage traditional energy meters?

While their primary focus is on smart meters, Calisen.com, through its comprehensive services, would likely manage existing metering infrastructure.

However, their strategic emphasis is on the transition to smart meters and associated advanced energy technologies.

How does Calisen.com compare to other smart meter providers like SMS plc?

Calisen.com and SMS plc are both major smart meter asset providers MAPs in the UK, owning and managing large portfolios of smart meters and offering related services like installation and data management.

Both are key players in supporting the national smart meter rollout.

Calisen highlights its comprehensive integrated offerings and strong B2B partnerships.

Can I refuse a smart meter installed by Calisen via my energy supplier?

While the UK government has a strong push for smart meter adoption, you can typically refuse a smart meter installation by contacting your energy supplier directly.

However, be aware that this may impact your available energy tariffs or future service options.

What does Calisen.com mean by “electrification of heat”?

The “electrification of heat” refers to the transition from traditional fossil fuel-based heating systems like gas boilers to electric alternatives, primarily heat pumps.

Calisen.com contributes to this by offering heat pump installation services to help reduce carbon emissions from heating.

Does Calisen.com work with all UK energy suppliers?

Calisen.com works with a significant number of UK energy suppliers, including major players like Octopus Energy, to facilitate the smart meter rollout and other energy infrastructure needs.

Their partnerships demonstrate their wide reach within the industry.

Are there any environmental accreditations or certifications for Calisen.com?

While Calisen.com emphasizes its commitment to sustainability and aligning with UK climate goals, the website does not explicitly list specific environmental accreditations or certifications for the company itself, beyond broadly stating their sustainable solutions.

Their commitment is highlighted through their services and the Calisen Impact Charitable Trust.

What is Calisen.com’s long-term vision for energy?

Calisen.com’s long-term vision is to lead the way in smarter, more sustainable energy by innovating and delivering the infrastructure and technology required to power the world more sustainably.

They aim to contribute significantly to reducing the nation’s carbon footprint and empowering energy users through advanced technology.

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