Having battery storage is the most expensive part of any off-grid system. Without it, you obviously dont need batteries, but you can also get rid of all the battery management stuff, charge controlling, inverters, etc.
Direct attic fan sounds great because you need it the most when it’s the most sunny.
It would be cool to do a direct solar powered hydroponics or pond project, where you just pump all the water to a reservoir when you have sun, and let it drain back 24 hours a day.





















Right amount of light, combined with watering by dunking the pot in water long enough to actually saturate the soil (like an hour for me). Especially when you see a bud start to emerge, you need to dunk it. Otherwise the leaf will start to emerge, but stop growing, and you end up with tiny leaves.
Terra cotta spikes also help.