Simply Sustainable
In recent months there has been much written and said about feed-in tariffs and the affect they will have on the renewable energy industry. As far as the self-builder is concerned the only thing that can be said with certainty is that we don’t know.
We don’t know what tariff model will be adopted (the Government’s consultation period does not end until mid October) and we don’t know what tariffs will be paid. We are reasonably sure that tariffs will vary but we don’t no much they will vary with different technologies or whether the tariff will be based on nominal capacity or actual production. We don’t know if these new incentives will presage a rush of interest and a booming industry or if they will fall short of exciting and leave the industry where it is. We don’t know if a booming renewable energy industry will bring the anticipated capital cost reductions as competition hot’s up or if the industry will choose to hold the prices and take more profit.
The one thing we do know is that renewable energy, even at domestic scale is now a commercial proposition and deserves the proper consideration of any commercial investment.
When we were getting next to nothing for the electricity we produced it did not matter too much what technology we installed. Now the technology matters a great deal, as does the capacity of the system, the actual production, the amount we can use on site and the amount exported. You would not invest in shares without careful consideration and the advice of an expert. Feed-in tariffs now mean that you have to do the same before investing in renewable energy. But the returns could make it all worthwhile.
Previous blog posts ...
One of the electricity supply companies have recently launched a new tariff for the purchase of electricity from renewable sources. You may have seen the advert, it goes "15p for every unit of electricity you produce, even if you use it in your own home". Sounds like a good deal. Getting paid for the electricity that you have used? Sounds good, perhaps too good!
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Once again I recently surprised a client by suggesting that single-skin timber-frame wall construction would be a good idea. Shock and horror hardly describe it. It was like I suggested that his children be sold into slavery to fund the new home.
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I was recently working with a client who wants to build a new, energy efficient home that presented an interesting problem. At a meeting with the clients and their architect everyone agreed that minimising the energy needs of the house had to be the first priority. Also that it is the cheapest option. The payback on achieving even super-insulation levels will be in the region of 4 to 5 years. The sort of figure that solar panel manufacturers can only dream of.
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Tim Pullen
Tim Pullen is an expert in sustainable building and energy efficiency. He works at green homes consultancy Weather Works advising clients on renewable energy and efficiency in the home.


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electrical heating vs gas heating
Could you please make comment on a product that I have been introduced to by a local electrical shop. The product is an electrical radiator and is manufactured by Rointe. According to this companies info the heating cost using there rads closely match the running costs of a gas heating.
I find this hard to believe given the unit costs of electrical power and the overall transmitting loss from the generation to the home network.
The Rointe unit are also very costly.
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