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We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
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NuWatt designs, installs, and manages solar, battery, heat pump, and EV charger systems across 9 states. One company, one warranty, one point of contact.
Get a Free QuoteSide-by-side comparison based on specs, real pricing, and our crew's installation experience. Updated for 2026.
$15,400 installed
$8,500 installed
Powerwall 3 has a built-in solar inverter, so it replaces both the battery and inverter in a new solar+storage system — saves $2,000-3,000 vs separate components. Our Tesla-certified crew installs in 4-6 hours. The 11.5 kW continuous output means a single unit can back up the whole house including AC. Expansion packs ($5,900 each) add capacity without another inverter.
Our crew mounts the IQ 5P on a garage or basement wall in about 3 hours per unit. It pairs directly with the Enphase IQ System Controller — no separate gateway needed. We typically recommend 2-3 units for essential load backup or 4+ for near whole-home coverage. The modular approach means you can start small and add units later without rewiring.
Tesla Powerwall 3 vs Enphase IQ Battery 10C
BatteriesTesla Powerwall 3 vs FranklinWH aPower 2
BatteriesTesla Powerwall 3 vs sonnen sonnenCore+ 10
BatteriesEnphase IQ Battery 5P vs Enphase IQ Battery 10C
BatteriesEnphase IQ Battery 5P vs FranklinWH aPower 2
BatteriesEnphase IQ Battery 10C vs FranklinWH aPower 2
BatteriesEnphase IQ Battery 10C vs sonnen sonnenCore+ 10
BatteriesEnphase IQ Battery 5P vs sonnen sonnenCore+ 10
BatteriesFranklinWH aPower 2 vs sonnen sonnenCore+ 10
Our energy advisors help you pick the right equipment based on your home, energy usage, and budget. Free consultation — no obligation.