Tom Seppings, of Beccles, has created the SolaPlug, which aims to make the heating of water cheaper and also easier to fit.
The invention is a flanged adaptor which connects solar heating panels to an existing hot water tank, meaning that the cylinder can be retained rather than scrapped.
Mr Seppings noticed through the course that a lot of plumbing work was required to install the technology and that the benefits were not big enough for many people to be able to afford it.
â€œThe main obstacle has been the high cost of fitting it into existing homes. I looked at ways of making it cheaper. Fitting a new tank is a third of the cost so I looked at alternatives.
â€œI came up with the flanging arrangement and did some research and I was amazed no-one else had done it. It was almost too good to be true.â€
Mr Seppings applied for a patent in August 2007 and exhibited a prototype in 2009, since when he had continued to fine-tune the product for the market place.