Question 1

What does your matchmaking service cost?

Accepted Answer

Nothing. The installer pays us a flat referral fee. That fee is the same whether you buy a $9,000 home battery or a $24,000 stack, so we have no incentive to upsell you.

Question 2

Will my information be sold to multiple installers?

Accepted Answer

No. Your information goes to one home battery installer (the one we match you with) and nowhere else. No marketing partners, no resellers, no follow-up calls.

Question 3

What if I already have a home battery quote?

Accepted Answer

Great. Send it over. We'll either confirm it's a fair deal or tell you where it's off. No charge either way.

Question 4

How do you choose which home battery to recommend?

Accepted Answer

Your home's electrical service, your reason for backup, your existing solar (if any), and your roof or wall layout. The right answer is rarely the biggest box.

Question 5

Are you affiliated with the government or a utility?

Accepted Answer

No. We are a private company, WattKeeper LLC doing business as Solar Battery USA. We are not a government program, a utility, or a state agency.

Question 6

What happens after I submit the application?

Accepted Answer

A human reads your application within two business days, calls you to confirm the details, and emails one home battery installer match with an introduction. You take it from there or you don't.

Question 7

How much does a home battery cost in 2026?

Accepted Answer

A single-unit home battery typically runs $9,000 to $17,000 installed for a 10-15 kWh system, before incentives. A whole-home stack of two or three units runs $20,000 to $35,000. The 30% federal tax credit through 2032 takes thousands off the real cost.

Question 8

How long does a home battery last?

Accepted Answer

Most modern home batteries use LFP chemistry and come with 10- to 15-year warranties. They're rated for 4,000 to 15,000 charge cycles. Real-world expectancy is 10-15 years of useful life before significant capacity loss.

Question 9

Does a home battery work during a power outage?

Accepted Answer

Yes, if installed correctly. A grid-tied battery without backup configuration shuts off during an outage for utility-worker safety. A properly-installed battery with a critical-loads panel will island your home from the grid and keep your circuits running.

Question 10

Will my battery actually work when ERCOT fails?

Accepted Answer

Yes, if it's installed correctly with a properly-sized critical-loads panel. We only match you with installers who've done islanding-mode commissioning on the chemistry they're recommending, and we confirm your home has the right transfer-switch configuration before the introduction. A battery that can't island during an outage is just an expensive UPS.

Question 11

Does the rebate situation in Texas look like California's SGIP?

Accepted Answer

No. Texas doesn't have a statewide battery incentive program comparable to SGIP. Federal tax credits (Inflation Reduction Act, 30% of system cost) still apply, and a few utilities including Oncor and CPS Energy have time-limited rebate programs. Your installer will know which rebates apply to your specific utility and home. We vet them on that knowledge before sending you their way.

Question 12

How much battery do I need for a Texas summer outage?

Accepted Answer

For overnight plus a critical-loads panel (fridge, lights, internet, plugs, a few rooms with mini-splits), a single 13.5 kWh battery is usually enough. For whole-home backup including a 4-ton central AC during a multi-day Texas summer outage, you need a stack of 2 or 3 batteries (27 to 45 kWh total) and a whole-home transfer switch. Your installer sizes this based on your specific home and load profile.

Question 13

Which Texas utility is best for home battery interconnect?

Accepted Answer

Oncor (DFW and Central TX) and AEP Texas (West TX and the Coastal Bend) both move quickly on home battery interconnect, typically 2 to 4 weeks from application to permission-to-operate. CenterPoint (Houston) and CPS Energy (San Antonio) take a bit longer, generally 4 to 8 weeks. Municipal utilities like Austin Energy and Garland Power & Light vary. Your installer handles all paperwork.

Question 14

Can a battery power my AC during a Texas summer outage?

Accepted Answer

Yes, with proper sizing. A single home battery can run a 1-ton mini-split AC for 8 to 12 hours. Running a 4-ton central AC requires a 2- or 3-battery stack (27 to 45 kWh) AND a soft-start kit on the AC compressor to handle the inrush current. We confirm AC compatibility during application review. Every installer we match you with has done summer-outage commissioning in Texas.

Solar batteries for Texas homes, one expert match.