Introducing Heat as a Service – An Industry-First Solution to Decarbonise Your Estate

Posted September 12, 2023



In an industry first initiative, Plug Me In, a Calisen Company, has partnered with Clade Engineering to launch Heat as a Service, a groundbreaking solution set to redefine sustainable heating systems for businesses and public sector organisations.


With a focus on decarbonisation and energy security, Heat as a Service covers the initial upfront capital investment, making the transition to green energy more accessible than ever before.

Plug Me In & Clade Engineering Unveil a Revolutionary Approach to Sustainable Heating

Why Heat as a Service?


As businesses navigate the complexities of the modern energy landscape, the need for efficient and eco-friendly heating systems has never been more urgent. While the initial costs often deter organisations from adopting sustainable solutions, Heat as a Service offers an innovative service model that eases this financial hurdle.



How Does It Work?


Between Plug Me In and Clade Engineering Heat as a Service covers all aspects of your new low carbon heating system, including:


  • Financing: Plug Me In covers the upfront capital costs, allowing businesses to pay in monthly instalments.


  • Design: Clade will custom-design a commercial-scale heat pump and heating system tailored to the specific requirements of your estate.


  • Manufacture & supply: Clade will manufacture a natural refrigerant heat pump and supply this from their factory in the UK.


  • Installation: Clade will install the new system, integrating with your existing distributions system.


  • Service and maintenance: Included within the monthly service payment is a service and maintenance package, with system performance guaranteed.



What are the benefits?


Lower your bills: With highly efficient natural refrigerant heat pumps you could enjoy lower energy bills when compared to ageing fossil fuel boilers.

Reduce your carbon footprint: By electrifying your heating system you can significantly lower your carbon emissions helping the drive towards net zero.

Spread the cost: With no upfront capital costs and a single monthly payment you can spread the cost over 15 years allowing your business to focus investment where it’s needed.

Peace of mind: With all aspects of financing, design, supply, installation and aftercare covered, Heat as a Service gives you peace of mind allowing you to focus on your core business.



Who is it for?


Heat as a Service is designed for businesses and public sector organisations looking to decarbonise buildings and processes within their estate portfolio. This could be a block of flats with a central plant room currently running a gas fired boiler, a leisure centre with utility cost challenges, or a manufacturer using heat for textiles or food production.The applications are extensive and include the full range of Clade technology and applications engineering expertise.



Final word


Plug Me In and Clade Engineering are incredibly excited to bring Heat as a Service to market. This collaboration signifies more than just a product launch; it represents our shared commitment to work alongside businesses and public sector organisations in reaching net-zero carbon emissions. Together, we can pioneer a greener, more sustainable future.


Let’s make the future of heating green and affordable for everyone.


Are you ready? It’s time to Plug Me In



Get In Touch


To discuss how Heat as a Service could help your business, please contact or visit the Clade website here.


For media inquiries, contact: Sam Peachman at



About Plug Me In


Part of the Calisen Group, Plug Me In is a leading national provider of smart energy technology solutions, providing infrastructure and installation services to businesses and homes.


Specialising in heat pump and EV charging installation and maintenance, Plug Me In provides a tailored and bespoke service every step of the way. With localised teams of highly-skilled in-house experts, Plug Me In’s technicians work with the customer to understand their home or business needs and the building or location specifications, before advising on the best smart energy solution for the individual home or workplace.


Whether utilising the government’s boiler upgrade grant to install a heat pump at home or electrifying a fleet, choosing between return to home and office EV chargers for staff,  Plug Me In makes selecting, installing and maintaining EV chargers and heat pumps straightforward and simple, thanks to innovative offerings including no upfront cost options and ongoing 24/7 support across their product range. Plug Me In provides added reassurance by being OZEV approved, NICEIC registered, and ISO accredited.


Plug Me In operates alongside Calvin Capital and Lowri Beck as part of the wider Calisen Group to offer solutions across energy technology, installation and maintenance.



About the Calisen Group


The Calisen Group is a leading owner and manager of essential energy infrastructure assets, as well as a provider of smart meter, electric vehicle charging and heat pump installation and meter reading, maintenance and ancillary services, whose purpose is to accelerate the development of a cleaner, more efficient and sustainable energy segment.



About Clade Engineering Systems (Clade)


Clade manufactures and delivers natural refrigerant (CO and hydrocarbon) heating and refrigeration solutions for the UK, offering a turnkey solution from design and manufacture through to aftercare.


Founded in 1985 as a refrigeration services company, Clade has deployed over 600 natural refrigerant appliances and since expanded into manufacturing refrigerant appliances and CO2 heat pump technologies. A specialist in helping customers reduce carbon emissions, their range of energy-efficient heat pumps can generate from 50kW upwards, offering extensive choice for customers in the retail, commercial, industrial and public sectors.


Designed and manufactured in the UK, specifically for the UK market, Clade understands the needs and environment of its customers. Working with customers to comply with the latest legislative changes around the decarbonisation of heating, Clade’s in-house research and development team offers thermal solutions to future-proof against the increasing costs of energy whilst reducing carbon footprint.


Going beyond the manufacturing of heat pumps and refrigeration, Clade provides a complete end-to-end solution to maximise performance and energy efficiency of their innovative and cutting-edge technology. This includes maintenance, aftercare and digital services to optimise performance and energy efficiency through condition monitoring, remote diagnostics and analytics.


Clade is backed by investment from Group Atlantic who operate well known brands in the UK heating sector; Ideal Heating, Hamworthy, ACV, Atlantic, Keston and Gledhill.