Hacker News Reader

Installed costs for residential battery storage typically range from $800-1,200/kWh in the US market as of 2024-2025.

ROI for 24/7 solar+battery is negative in almost all residential cases using current technology and prices.

For $800 you can get a complete 2kWh system, including cells, inverter and panels shipped to your home in Europe, so if you're paying more than that for half the storage either your government or contractor is fleecing you.

I can confirm that prismatic 1kWh LFP cells cost ~$60 in single digit numbers.

What is the US doing differently that it is so expensive there?

Reply on news.ycombinator.com