Comparing gas/elec... how to take into account my solar thermal?

Daniel_gecko

Hi all,
I am trying to figure out what to do with my gas/elec bills as I have just moved into a new house.

Here is what my last bill said (Mid september - mid november) and I haven't recieved another bill yet.
1254kWh / 56 days gas = 8173/year
358kWh / 56 days elec = 2333/year

I'm using the comparison websites eg uswitch and I see there are some which offer high prices for your first X units then cheap afterwards, and there are some which offer low prices with an annual fee.
Usually I would draw some graphs and see where the cutoff point is..
but I have solar thermal (sun heats my water) all over my roof. I have no idea how much this contributes towards my gas bills though.

Any ideas what sort of plan I should go for?

Thanks

macman

SC and NSC tariffs make hardly any difference over the year. The NSC tariffs are only cheaper if you are a very low user (if you spend the winter abroad or something similar).
Pick the cheapest comp site result for your estimated usage. Hot water is not the main component of your energy bills-heating is.

Cardew

The EST estimated that solar thermal reduces energy bills by 5.5%. WHICH say between £50 and £85 pa.

Government commissioned some tests on several systems that showed, in real usage, the systems saved on average approx 1,000kWh - nearly all in summer.