this post was submitted on 20 Oct 2025
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I have two 10,000 liter water tanks in my basement that I use to harvest rainwater, and another 2,000 liter tank on my roof. From October to around May I close the city water and use only rainwater. I’ve been doing that for a bit more than 10 years now, and it paid for the installation cost in about 4 or 5 years. I also have solar water heaters, but it’s hard to tell how long they took to pay for themselves because I also have on-grid photovoltaic panels for energy generation. My energy bill is about 1/6 of my neighbors’, and the photovoltaic panels paid for themselves in about 5 years as well.
Wow. Thats very cool. I'm planning on getting a solar system installed this winter too (costs less in the winter). Here power supply is not reliable but solar is fairly cheap thanks to China. Infact I'm pretty sure we have a very impressive solar system for a country of our status. (Pakistan)
It’s been more than a decade since I installed mine, so there are probably more options today, but when I did, you were either on-grid or off-grid. On-grid means you "sell" your energy production to the energy company, but if the city power goes out, so does yours. Off-grid means you don’t use city energy at all, but it was much more expensive because it required batteries for storing energy... however, I remember recently reading about people using their electric car batteries to power their houses when the electricity was out, and I’m sure batteries are much more affordable nowadays because of how much electric car technology has developed.
Bit different here. You can be on grid or off grid too. But the government has limits. They don't want to buy all the power lol. Despite the fact that they don't produce enough themselves.
You are put on a waitlist first. Now we do have one side of the house under solar already for a year. But thats my uncles side, and they are on grid by now plus have have batteries. And yep batteries are the expensive part here too. But you can manage a combination too.