Belfast company wins Ashden Award for solar thermal innovation

Willis Renewable Energy Systems, solar thermal
Installed next to the original water cylinder, the Solasyphon reduces the cost of adding solar thermal hot water to a home.

Willis Renewable Energy Systems of Belfast has won an Ashden Award, the world’s leading green energy awards, for its Solasyphon system. It speeds up and simplifies the retrofitting of solar water heating in domestic premises by avoiding having to buy a new water cylinder.

Since production began in 2007, the company has sold over 2500 Solasyphons, and is now selling over a thousand a year.

Solasyphon acts as a heat exchanger between the solar thermal panels and the hot-water cylinder and reduces capital costs from £650 to £1300. They take up very little space and have been accepted by the Microgeneration Certification Scheme, allowing access to grants and the forthcoming Renewable Heat Incentive.

For more information on this story, click here:August 10, 63
Related links:
Related articles:



modbs tv logo

More refrigerant bans possible, says government

The government could tighten up the rules that restrict the use of global warming refrigerant gases including speeding up phase-out programmes and introducing new bans, according to a spokesman from the Department for Environment, Food and Rural Affairs (DEFRA).

Baxi research suggests schools strongly support heat decarbonisation

A survey conducted by Baxi of 200 state school estates managers, consultant engineers and M&E contractors has found that while enthusiasm for Net Zero and support for low carbon heating systems in schools is thriving, persistent barriers remain.