I'm considering a DIY solar battery system with a capacity of 30 kWh. I already figured out my daily usage is about 10 kWh. I'm particularly interested in using LifePo4 batteries and I live in North West Arkansas, where we get around 5.29 hours of sunlight in summer and about 3.88 hours in winter. Can anyone provide an estimate for how much this setup would cost?
2 Answers
If you're looking at building the batteries yourself, the cost for 16 cells is roughly $130 each, including shipping and taxes. Adding in the costs for cables, fuses, and building a box could bring your total to around $2,500 for about a 15 kWh battery pack. Don't forget about the inverter, which can range from $1,000 to $5,000 based on whether you choose an off-grid or hybrid inverter. Just make sure that your calculations on usage are accurate; those can often be misleading! It might be good to check your electricity bill for real numbers.
Also remember, the inverter itself can use extra power just sitting there—typically around 100 watts per hour. This could bump your daily usage up quite a bit, so factor that into your overall calculations!
Good point! Many people overlook that standby usage when planning their systems.
Yeah, definitely check your bill! It gives a clearer picture than most calculators.