Licensed Solar Installers
in Duncan, Oklahoma

To estimate system size: divide your annual kWh consumption (from your electric bills) by your location's peak sun hours × 365. For Duncan, Oklahoma, peak sun hours average 4.0–5.5 hours/day. A 10kW system produces approximately 12,000–15,000 kWh/year in Duncan's sun conditions — enough to offset a typical 3–4 bedroom home. Your solar installer will size precisely using 12 months of actual consumption data.

Monocrystalline panels: higher efficiency (19–22%), better shade tolerance, longer lifespan, and higher cost — the dominant choice for Oklahoma residential installations. Polycrystalline: lower efficiency (15–17%), lower cost, slightly less shade tolerance — largely phased out by premium manufacturers. Thin-film panels: best for industrial/commercial and odd surfaces, not typical for Duncan rooftop residential. Most quality installations in Oklahoma use monocrystalline panels from tier-1 manufacturers (LG, SunPower, REC, Qcells).

Grid-tied solar: your panels produce DC power, the inverter converts to AC, and your home uses solar first, then draws from the grid when needed, and exports excess when producing more than you use. In Oklahoma, utility net metering credits your bill for exported power. During outages, grid-tied systems without batteries shut off for safety. Adding a battery lets you island your home during outages while keeping your solar panels running.

Yes — a properly sized system can offset 90–100% of annual consumption in Duncan. Note: solar production varies by season and weather, so you'll pull from the grid on low-production days and export excess on high-production days. Net over a full year, a right-sized system can yield a near-zero or credit electric bill. Your installer will size based on your 12-month consumption history and Duncan's specific sun hours by month.

Adding major loads (EV charger, pool pump, hot tub) after solar installation may require a system expansion. Before installation, discuss all planned future loads with your solar contractor — it's far less expensive to size larger upfront than to add panels later (permitting, interconnection, design costs repeat). EV chargers are the most common add-on load in Oklahoma — mention it when getting quotes even if you don't own an EV yet.

Solar warranty components in Oklahoma: panel performance warranty (25 years, guaranteeing minimum output), panel product warranty (10–25 years, covering defects), inverter warranty (10–25 years depending on type), and installation labor warranty (5–10 years from the contractor). Check that your installer will be in business long enough to honor the labor warranty — use an established company with verifiable Oklahoma reviews and years of local installations.

Notify your homeowners insurance company when solar is installed in Duncan — solar panels are typically covered under your dwelling coverage, but you may need to increase coverage limits. The average 8kW system adds $25,000–$40,000 of insured value. Some Oklahoma insurers offer specific solar riders. Leased systems are owned by the leasing company — they carry their own insurance, but your policy should still note the installation for liability purposes.

Solar installation in Duncan, Oklahoma follows these steps: (1) in-home assessment and design — measuring your roof, shading analysis, consumption review; (2) permits filed with city/county; (3) utility interconnection application; (4) installation day(s); (5) city/county inspection; (6) utility inspection and PTO (Permission to Operate); (7) your system goes live. Steps 2–6 take 1–3 months; your contractor manages all of it. You're active mostly at the start and the end.