Heating requirement Heating: 95%; Hot Water: 5% Building Size 500 sq m Current Heat Source Oil Current Heating Cost (pa) £7,500 Cost of GSHP System £37,000 Running Cost with GSHP (pa) £3,348 Running Cost Saving (pa) £4,152 RHI Payment £4,821 Total Saving with RHI (pa) £8,973 Summary Payback (years) 4.1 Total Savings over 20yrs £142,464
requirement Heating: 100%; Hot Water 0% Building Size 3,700 sq m Current Heat Source LPG Current Heating Cost (pa) £19,500 Cost of GSHP system £125,000 Running cost with GSHP (pa) £6,771 Running Cost Saving (pa) £12,729 RHI Payment £6,933 Total Saving with RHI (pa) £19,663 Summary Payback (years) 6.4 Total Savings over 20yrs £268,250
Requirement Heating: 10%; Hot Water: 90% Building Size / Current Heat Source Electric Current Heating Cost (pa) £7,200 Cost of GSHP system £34,000 Running cost with GSHP (pa) £2,250 Running Cost Saving (pa) £4,950 RHI Payment (pa) £3,240 Total Saving with RHI (pa) £8,190 Summary Payback (years) 4.2 Total Savings over 20yrs £129,800