Hacker News Reader

My parents spent $18K on rooftop solar in the Boise metro area. One Tesla powerwall battery and install on top of that will be another $15K.

And the Powerwall is also a ripoff vs many other options. 5kw battery module can be for for 1.2k, so 3 modules give 15kwh for under 5k

depends on the market. The 5kw options i was quoted were Enphase 5p batteries, average price from multiple installers was $5k per battery installed.

Needs an inverter though, but if you have solar you already should be ok