COVID-19 Notice

During this uncertain time, since the mid-March government announcements on COVID-19, our first priority is staff and customer safety and well being. Our staff are now working from home and all our services are running normally with the exception of any activities involving tradespeople visiting customer homes. As soon as government restrictions on movement of people are lifted we expect to resume normal operations.  Please check our LinkedIn page for regular updates.


A smart energy platform for the age of the smart grid

PassivSystems have developed a range of home energy services which are changing the landscape of the energy industry. We are a pioneering company at the forefront of making energy use more efficient and more affordable for millions of households. Our motivation is to help consumers, asset owners and businesses get better value for money and to make a significant difference to global emissions

In 2010 we were the first company to launch a smart thermostat that allowed consumers to remotely control their heating. In 2015 we became the UK’s No 1 residential Solar PV asset management services business and in 2016 we launched the world’s first predictive load management service for optimising CHP equipment on residential district heating networks. We are all about putting consumers back in control of their energy costs and providing energy asset owners with improved financial returns.


Solar PV

Maximise returns by reducing lifetime operational costs

District Heating

Increase financial returns and bankability of new schemes


Differentiate services and increase customer loyalty

Our Partners Include

Wind Uk
Department for Business, Energy & industrial Strategy
National Grid
Western Power Distribution
Wales & West Utilities

Case Studies

648,210 MWh

Total generation monitored to date


Carbon tonnes equivalent saved by our customers to date


Connected Meters

* Carbon tonne saving calculation is based on the June 2015 recommended conversion factors provided by Defra as part of its Environmental Reporting Guidelines

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Our award-winning technology increases efficiency and reduces operational costs