What types of storage devices do y'all with solar systems have for night time power?
most solar installations have no storage they are only grid tie only ( means it sends the power directly to the utility by backfeeding your mains and turns back your meter at day and then at night you use the power from the utility you gave them at day as you’re still connected to utility, which offsets it to zero roughly).
That said, I’m a bit of a geek on this topic and I’ve done many home installations, including wind turbines, etc. I do have a battery bank that I can run off of at home if the grid work to go down. My battery bank holds approximately 20,000 W of energy but I can only run that down by half so 10,000 W of energy is all my battery bank holds but I only use it for critical circuits in case of utility collapse/failure.
Remember if the grid is up, I’m just taking from the utility back what I gave them during the day. I am not using my storage in the batteries. But I use lead acid batteries, specifically 6v interstate 2200s wired series/parrelel. You get more bang for your buck on the lead acid although you do have to be careful in setting up venting which I’ve done with both passive and using relays that trigger a fan that will vent out. But, people will also get “gel cell batteries” were there is no venting required, and now with the Tesla ball people are going that direction as well for storage. Remember, storage is only used for two reasons: the first is because the consumer wants assurance that if something catastrophic happened to the grid and it went down they can still run their house from there battery bank.
The second reason for storage would be because the installation is completely off grid, and not part of the utility or connected to the utility at all. For example I have a cabin which I did an off grid only installation, since I am not connected to the grid out there and that’s my only way of getting power for the night when the sun goes down. But most installations today and the most economical is the grid tie only, and the best are the micro inverters like
Enphase. PS sorry for the typos I did this by voice