I was thinking about how you could combine different renewables to create a really efficient and high payback solution. What do you experts think is the perfect combination for an average off-grid house? My house has a decent sized south facing roof and a bit of room in the garden, plus it was built about 20 years ago and is well insulated, so I think any of these options are on the table.
I want to be convinced that my hard earned cash is going to, whilst maybe not turn a profit, get my money back within a reasonable amount of time. So would it be better to combine a ground source heat pump with solar thermal, or go for biomass with solar pv? What are the pros and cons?
Cheers,
Richard
