Income would be based on the amount of PV installed, where it is on the building, and the Feed in Tariff. Cost is affected by currency, volume manufacturing, scaffolding, building shape etc, but we managed to agree with EE a 'ballpark' figure for varying sizes of installation, up to a maximum of 4kW installed. Payback is a ratio of cost to income.
In the photo: Yu Wei Luo (UoN), Tim Saunders (EST), Chris Brookes (EE) and David Nicholson-Cole (UoN)
Nothing scientific, I thought I would share my experience here.
ReplyDeleteI paid £13,500 for a 3.82kW Sanyo Hybrid system (16 panels). In 11 weeks we have generated 1170 units, which by my calculations, please feel free to correct, is just shy of a £500 return from the Feed in Tarrif. (NOTE: It is summer and winter will not in all probability provide such good generation). I am however, finding it very very slow going with my energy provider 'npower' and am having to constantly chase them as the Feed in Tariff is still not in place for my installation, I beleive if the boot were on the other foot I would have had court enforcement papers through my door for non payment of my bill - interesting how the energy companies work when it is the other way around. Paul, near Mapperley
You certainly need to send them precise meter readings more often, its not on for payments to be based on Guesstimates. Although its a system for the next 25 yrs, its slightly annoying to think that its going to be a regular job of reminding them frequently.
ReplyDeleteYou are the first I know with Hybrid panels. as far as I know, these are monocrystalline wafers, but set onto a backing sheet of amorphous PV, raising the panel's power from 150W/sqm to 190W/sqm. the amount you paid seems about right for a 3.82 kW system. My east facing array of 3.96 has made about 1130 units in 11 weeks.