Is $43,404 to install a solar + battery system a fair price?
Project Details
I'm evaluating a solar + battery system proposal and am looking for feedback on the system design and pricing. My current average electric bill is ~$547/month. My household includes one EV commuting ~600 miles/week, which charges daily at home. I also use AC regularly during summer months (June–September). PG&E off-peak costs are $0.436 kWh, and peak costs are $0.571. I'm a bit sticker shocked by the price, as my neighbors installed a 6 kWh system (panels only) years ago for $16k. I was going to take my time deciding but don’t want to miss out on the federal tax credit. The estimated switch-on date would be in October. My roof is west facing with no shade or trees obstructing.
Quote Details
This proposal is for the installation of a solar and battery storage system. The system is designed to offset 114% of current usage with an estimated annual solar production of 15,902 kWh. The installation will be on a 2-story tile roof with an estimated 20+ years of remaining lifespan. The estimated payback period for the system is approximately 7 years. - Solar Panels: 28 x Mission Solar Energy MSX N-Type 108HC (model: MSE435SX9Z) - Microinverters: 28 x Enphase IQ8PLUS-72-2-US (2024 version) - Battery Storage: 2 x Enphase IQBattery-10C-3P-NA (10 kWh each, 20 kWh total storage) - Component Warranty: 25-year manufacturer warranty - Workmanship Warranty: 10-year from installer
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More Details
Category
Solar
Price
$43,404
Quote Date
August 11, 2025
Location
California
Battery Storage?
No
# of Panels
28
System Size (kW)
12.18
Warranty (yrs)
25
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