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RHI
Posted: 18 Dec 2010, 20:57
by lurker
Posted: 18 Dec 2010, 23:01
by RenewableCandy
What I wonder is how they propose to measure the heat generated! I mean, we have a woodburner which is run intermittantly. It doesn't feed heat into anything except the surrounding air. I have no idea how much wood it burns and of what sort because it's whatever we can get hold of, and there are no invoices etc for "gleaned" wood.
Perhaps we simply won't qualify? Perhaps you get a refund-and-then-some on bought wood? In which case it'd be worth our while buying (cost roughly 3p/kWh, and reclaim 9 p/kWh) not gleaning (cost zero, reclaim zero)?
Posted: 18 Dec 2010, 23:45
by lurker
Woodburners are covered unfortunately they are listed under exceptions.
The info about how it will actually work seems very sketchy.
I just tried to work out how it would work with pellets as an example but the figures seem abit crazy
Tariff for biomass = 9p per 1 Kwh
1kg pellets = 4.7kwh energy ( 9*4.7 = 42.3p )
1000kg pellets = £423
1000kg pellets cost to buy = £250.00
So for every 1 ton burn/buy you earn £173 profit?
Seems like the more you burn the more you earn!
Oh: They aren't that dumb
. Explains how it will work:
http://info.cat.org.uk/questions/rhi/ho ... calculated
Posted: 19 Dec 2010, 15:12
by RenewableCandy
It sounds as if you can't get RHI except for systems that are planned to meat all your heating needs in one lump. Which is a pity because there's no way I'd do that to Chateau Renewable: we'd have zero backup if (when) it all went wrong.
Posted: 20 Dec 2010, 12:31
by Ted
Stipulating that the renewable system in the sole heating installation is the major disadvantage of the RHI as proposed. You are forced to put all your eggs in one basket instead of promoting diversity.
Immersion heaters are allowed as backup (hard to exclude these when many ASHPs rely on them as part of the system).