(28-07-2023, 01:25 PM)Wainuiguy Wrote: Have looked at PV and wind. The research I have looked at says if the reason you are installing PV is to save money then don't bother. The savings in power over the life of the panels and storage isn't worth it. Wind power for domestic use is also poor.And then there's the facts on PV. https://www.canterbury.ac.nz/epecentre/r...olar-tool/ EECA have this online calculator which provides economic returns on domestic PV installation for individual cases. Typically the payback period is ~10 years but the calculator lacks any input relating to EV ownership which can inmprove PV viability significantly, and of course payback is based on present supply rates for electricity which are only heading in one direction as the years roll by.
Currently the cost vs return on home storage batteries doesn't stack up but as both PV and battery technology continues to move ahead in leaps and bounds that situation will change over time, particularly as vehicle to grid (V2G) functionality becomes more common. For now grid tied PV which effectively uses the grid as its battery is the most viable option though this also requires some research to ascertain the best energy retailer to go with to gain the best fit for your own circumstances. An interesting time for advances in personal energy opportunities with many moving parts to consider.