PVs are working

We installed the photovoltaic panels about a month ago, so we have the first results. Our electricity from the grid went down from 278 units to 98, and we generated 179 units. Therefore we generated more than we used from the grid, and our electric bill for the month will be about -£25. This was not a main element of the design, but it made sense for us to take advantage of the feed-in tariff. We will be more focussed on our electricity use as well. Photos of the PV installation tomorrow. The gas usage was high in January because we hadn't finished insulating and commissioning the MVHR - and it was cold! Next winter should be much better; we have used about 42% less gas for the first six months than we did before, but intend to get closer to 80% less when we sort out the airtightness.