Yes, I do mean free, or at least up to 40% of your usage could be free.
Daniel Green of the home energy company HomeSun will soon start giving away the first of 100,000 solar power systems to anyone with a decent sized south facing roof. He intends to roll out his offer over three years. HomeSun will install and maintain your free system for a period of 25 years.
Mr Green was also on Radio 4 this week explaining his reasons for such an offer. Energy companies are now compelled, for the next 25 years, to make payments to homeowners for all solar power produced. That's both power used in the home and any surpluses. Under HomeSun's scheme customers get to keep all the solar power they need, free of charge and the fees received from the energy companies - known as Feed-in Tariffs - go directly to HomeSun.
"I'm not a charity and I haven't become a tree-hugger. However, I do think we're mad not to make more use of such a great natural and free resource as the sun." My translation: "This will be a great wee earner. Electricity providers will up the costs to the consumer to cover their own costs of the Feed-in Tariffs and I cream off my share of this government-backed incentive scheme. The only losers are the consumers who won't, for various reasons, be eligible for my system."
To qualify for Mr Green's 'badge of honour' offer you require to have a south, south-east or south-west facing roof where there's no shade from trees or neighbouring building. Just a small amount of shade from trees can cut the efficiency by 50% and if your home faces north, forget it.
A very innovative person is Daniel Green and I suspect his exasperated ex-headmaster, who told him he'd never amount to much and then expelled him from his grammer school, is feeling a wee bit discombobulated this morning - if he's still alive.
All this reminds me I never had a response from the company which was determined to sell me solar panels. Maybe I asked too many questions.