Russell griffiths Posted August 17, 2018 Share Posted August 17, 2018 Just looking for some very rough answers trying to make sure I have enough room on the roof for some panels 3 bed house 206 square m ground source heat pump most normal things in the house nothing special what sort of amount of room will the panels take up i know i haven’t given a lot of information but I’m just after a rough idea. Thanks russ. Link to comment Share on other sites More sharing options...
ToughButterCup Posted August 17, 2018 Share Posted August 17, 2018 Add 300 ml all round for the flashing to the stated area of the panels. Roughly for our 12 panels (3 Kw p) we needed about 16 square meters 1 Link to comment Share on other sites More sharing options...
A_L Posted August 17, 2018 Share Posted August 17, 2018 (edited) Most panels are around 1.0m x 1.6m, at 285w per panel with 20mm between panels you need about 6m2 per kWp output. You cannot have panels higher than ridge line and for the usual fixings you stay about 0.5 m away from other edges, although fixings are available to go right up to the edge (wind uplift problem). @Russell griffiths 1kWp will yield about 900kWh/year but do not expect any significant output when you need the heat pump for space heating. Maximum production will be 7-8kWh/kWp/day in May/June. Dec/Jan might average 0.8-1.0kWh/kWp/day with frequent zero days Edited August 17, 2018 by A_L to add output info 1 Link to comment Share on other sites More sharing options...
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