Loading NuWatt Energy...
We use your location to provide localized solar offers and incentives.
We serve MA, NH, CT, RI, ME, VT, NJ, PA, and TX
Loading NuWatt Energy...
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 QuoteLights, fridge, and internet — the essentials. 5-10 kWh capacity, $5,000-$10,000 installed.
1 Enphase IQ Battery 5P (5 kWh) or single Powerwall.
Critical-Load Backup
$5,000-$10,000
Before incentives
5-10 kWh
1 Enphase IQ Battery 5P (5 kWh)
8-16 hours
Essential loads
Program
Grid Resilience
$5,000
From (installed)
A critical-load battery system provides minimal but essential backup — refrigerator, a few lights, Wi-Fi router, phone charging, and perhaps a medical device. The most affordable entry point into battery storage.
For Houston homeowners served by CenterPoint Energy (Houston) at $0.14/kWh, a critical-load backup system (5-10 kWh) stores enough energy to cover your most critical loads for 8-16 hours during a grid outage.Texas averages 48 hours of outages per year.
System example: 1 Enphase IQ Battery 5P (5 kWh) or single Powerwall. Installed cost: $5,000-$10,000 before incentives.
Ideal For
Pros
Cons
Expired December 31, 2025. Homeowners purchasing batteries with cash or a loan receive $0 federal tax credit.
Texas has no state battery rebate but batteries are essential for grid resilience.
Compare what you can run during a grid outage with each battery tier.
| Appliance | Whole-Home | Partial-Home | Critical-Load |
|---|---|---|---|
| Central AC/Heat | |||
| Oven/Range | |||
| Clothes Dryer | |||
| EV Charger | |||
| Mini-Split | |||
| Sump Pump | |||
| Refrigerator | |||
| LED Lighting | |||
| Internet/Wi-Fi | |||
| Phone Charging |
NuWatt installs these systems for critical-load backup in Houston.