Honest answers, no hedging

Most Austin-area residential systems price between roughly $2.50 and $3.50 per watt before incentives, so a 8 kW system lands in the low-to-mid $20,000s installed. Roof complexity, panel and inverter choice, electrical upgrades and the installer's overhead move it inside that band. Always compare quotes on price per watt, not the monthly payment.

Plan on four to ten weeks from signed contract to a system you can switch on. The roof work itself is one to three days. The rest is permitting with your city or county and interconnection approval from your utility, which is the step that varies most between Austin Energy, PEC, Oncor and the co-ops.

If the roof has less than about ten years left, replace it first. Panels last 25 years or more, and removing and reinstalling them for a re-roof typically costs several thousand dollars. A reputable installer will look at the roof before quoting and tell you if it is a problem; be wary of one who does not.

Tesla Powerwall and Enphase IQ batteries make up most Austin-area installs, with Franklin, SolarEdge and Generac PWRcell behind them. Powerwall offers more continuous power per unit; Enphase pairs naturally with microinverter systems and carries a longer warranty. The right pick depends on whether you want whole-home backup or just essential circuits.

A single 10 to 13.5 kWh battery runs a refrigerator, lights, internet and outlets for roughly a day. Central air conditioning is the deciding load: running it drains a single battery in a few hours, so whole-home backup through a Texas summer outage usually means two or more units, or a battery plus solar recharging it during the day.

Usually not on bill savings alone. Austin Energy and the co-ops do not have steep time-of-use rates for most homes, so a battery's value here is mostly backup during outages and, in Oncor territory, avoiding low export credits by using your own solar at night. Treat it as resilience you are buying, not an investment.

Owning the system, with cash or a loan, keeps every dollar of savings and any incentives with you and transfers cleanly when you sell. A lease or power purchase agreement means zero down but a third party owns the panels for 20 to 25 years and keeps the incentives. Since the federal homeowner credit ended for systems installed after 2025, the math between the two has shifted, so run both with current numbers.

A lease or PPA sets a fixed monthly payment or a per-kWh rate that usually escalates one to three percent a year. A loan payment is fixed and ends. Cash has no payment. The honest comparison is total cost over 25 years against what the utility would have charged, not this month's payment against this month's bill.

The buyer has to qualify for and assume the lease, or you buy it out, and either can complicate a sale. Owned systems simply convey with the house. Read the transfer clause before signing any lease or PPA.

Austin Energy does not use net metering. It bills you for everything your home uses at normal tiered rates and separately credits every kWh your panels produce at its Value of Solar rate, which it resets each year. Unused credits roll forward. Because production is credited at one flat rate, the payback depends on that rate, not on how much you export.

With Austin Energy the Value of Solar credit accrues on every kWh produced and rolls forward month to month, but it is a bill credit, not cash. The co-ops and retail plans in Oncor territory each handle surplus differently, and some pay far less for exports than you pay for imports, which is the main reason not to oversize a system.

Yes. Every utility in the region swaps in a meter that records production or exports separately from consumption as part of interconnection approval. Austin Energy meters solar production directly; Bluebonnet, PEC and Oncor-area meters record what flows back to the grid.

Austin Energy offers a fixed residential solar rebate for customers who complete its solar education course, and the utility publishes the current amount each program year. Texas exempts the added value of a solar installation from property tax appraisal. The 30 percent federal homeowner credit ended for systems placed in service after December 31, 2025; leased or PPA systems may still pass through a commercial credit.

The Austin Energy rebate is applied for by the installer and paid to them or to you depending on the contract, so ask which. The property tax exemption is a form you file with your county appraisal district. Any remaining federal credit for a 2025 install is claimed on your own return with IRS Form 5695.

Yes, and faster than most guides admit. Austin Energy revises the Value of Solar rate annually, PEC has changed its export rate through board votes, retail buyback plans in Oncor territory turn over every few months, and federal policy changed in 2025. Each guide on this site dates its numbers so you know what to re-check.

A standby generator is cheaper per hour of long outage and runs as long as fuel lasts; a battery is silent, instant, needs no fuel, and can recharge from solar. For the multi-day grid failures Texas has seen, a battery paired with solar holds up better than a small battery alone. Some households run both.

System size, equipment tier, roof complexity, whether an electrical panel upgrade is included, and how much sales commission and dealer fee is baked in. Two quotes for the same roof can differ by $8,000 with nothing different on the roof. Price per watt and the equipment model numbers are the two lines that expose it.

The DC system size and price per watt, the exact panel and inverter models, an address-specific production estimate, the escalator on any lease or PPA, dealer fees hidden inside a loan, warranty lengths for panels, inverter and workmanship, and who handles the utility interconnection. A proposal that will not put those in writing is telling you something.

Panel output warranties run 25 years and inverters 10 to 25. The one that matters most is workmanship, which covers leaks and wiring faults and is only as good as the installer still being in business. Ask who backs it if the company closes, since manufacturer warranties survive an installer and workmanship warranties usually do not.