Hi Chris,
Found your discussion regarding off-grid farmhouse on the Bldg-sim list very interesting. We are currently doing the design of power and heating system for an off-grid farmhouse in Cwm, Wales. I would be very interested in the approach you have taken to size the systems, sofwares used to model PV or Wind turbine with a diesel generator backup. I have used HOMER and PVsol to do the system sizing. But I am still struggling to accurately model a hybrid-system since HOMER is not a design tool but an optimisation tool. If anyone can share their experiences in modelling an off-grid system would be very useful.

Regards,

Apeksha Gupta