Yep, solar on residential doesn’t make much sense unless you can load match your generation.
If you have people home during the day and run your aircon anyway. Maybe heat your hot water during the sunniest period. Maybe charge your electric car (if you have one at home).
If the regulations change to incentivize feed in to the grid, this can make it make sense, but it needs to be at least 80% of what you pay per unit; there are grid matching solar inverters that will do the matching for you.
Just to jump in here, residential solar makes a lot of sense for natural disaster resiliency. Your system would need to be sized to cover your bases in winter, but NZers should expect to experience days without power in a future where more Cyclone Gabrielle’s will occur. That’s why adding battery storage is a key part of it too.
If the feed in rate was ok, then it would be a good idea. But then again, if the power price keeps increasing, the solar + storage option starts looking good.
Residential solar may also have another benefit over commercial. If the money wasn’t spent on solar, it would probably be reallocated to the mortgage. But by allowing you to borrow money for solar at 1% and put the rest of the cash into the main mortgage at 7%, you get 6/7ths of the altetnate plan.
The 1% is only three years then it rolls onto a normal mortgage rate, but that’s a big difference compared to companies whose borrowing cost is likely higher than the residential mortgage rate.
So residential solar is currently incentivised and commercial by comparison makes a lot less sense. So I guess this is where the govt could step in with subsidies or guarantees to reduce the cost to companies.
Yep, solar on residential doesn’t make much sense unless you can load match your generation.
If you have people home during the day and run your aircon anyway. Maybe heat your hot water during the sunniest period. Maybe charge your electric car (if you have one at home).
If the regulations change to incentivize feed in to the grid, this can make it make sense, but it needs to be at least 80% of what you pay per unit; there are grid matching solar inverters that will do the matching for you.
Just to jump in here, residential solar makes a lot of sense for natural disaster resiliency. Your system would need to be sized to cover your bases in winter, but NZers should expect to experience days without power in a future where more Cyclone Gabrielle’s will occur. That’s why adding battery storage is a key part of it too.
This is a good point, but for disaster resistance, you need to be able to run your fridge/freezer and charge your phone and radio.
A fire place for heating is a good bet. If you can afford it, a system sized to run your air con also would be great.
Battery storage for residential solar is getting popular, though this of course comes with additional cost that you then need to offset.
I’d like solar, and I don’t really care if it has good payback so long as it’s roughly break even. I’m part of the problem 😆
I understand.
If the feed in rate was ok, then it would be a good idea. But then again, if the power price keeps increasing, the solar + storage option starts looking good.
Residential solar may also have another benefit over commercial. If the money wasn’t spent on solar, it would probably be reallocated to the mortgage. But by allowing you to borrow money for solar at 1% and put the rest of the cash into the main mortgage at 7%, you get 6/7ths of the altetnate plan.
The 1% is only three years then it rolls onto a normal mortgage rate, but that’s a big difference compared to companies whose borrowing cost is likely higher than the residential mortgage rate.
So residential solar is currently incentivised and commercial by comparison makes a lot less sense. So I guess this is where the govt could step in with subsidies or guarantees to reduce the cost to companies.