EFS Solar

EFS Solar holds a 4.7/5 rating across 442 public reviews. The provider consistently scores in the top tier of their category.

EFS Solar's pricing falls in the "Contact for quote" range. Exact quotes depend on the specific service and scope — request a free written quote to compare before committing.

EFS Solar is primarily based in Gold Coast, Australia, and serves clients across Gold Coast and surrounding areas. Check with the provider directly for specific service-area coverage.

Our independent ranking of the top solar installer in Australia includes Climasolar, MLEC Solar, PSW Energy, Perth Solar Warehouse. Each has different strengths — see our comparison for a side-by-side breakdown.

Standard 6.6kW residential system: $4,500-$8,000 installed (after federal STC rebate). 10kW system: $7,500-$13,000. 13kW: $9,500-$16,000. Premium tier-1 panels (LG, REC, SunPower) add $1,500-$3,000. Battery (10kWh): $9,000-$18,000 (less Federal Cheaper Home Battery rebate of $4,000-$7,000). Total system with battery typically $13,500-$22,000 fully installed. Always get 3 quotes — prices vary 30-50% between installers for the same system.

The Small-scale Technology Certificate (STC) scheme automatically discounts your solar system at point of sale. Value depends on system size and location zone (Australia divided into 4 zones based on solar resource). For a 6.6kW system: Zone 1 (Darwin, FNQ): ~$3,500. Zone 2 (Brisbane, Perth): ~$3,200. Zone 3 (Sydney, Adelaide): ~$2,800. Zone 4 (Melbourne, Hobart): ~$2,400. The rebate is built into the price installers quote — you never claim it separately. STC values change with carbon market prices and reduce each year (10% reduction in 2030).

Battery economics improved significantly in 2026 with the Federal Cheaper Home Batteries program ($4,000-$7,000 rebate per battery from 1 July 2025). Best for: high evening electricity use, flat or low feed-in tariffs ($0.04-$0.08/kWh in most states), planning long home occupancy (10+ years), EV ownership, virtual power plant participation (extra income). Payback time with rebate: 6-9 years on a $13,000 battery. Top brands 2026: Tesla Powerwall 3, BYD Battery Box, AlphaESS, Sungrow, Sigenergy.