In New Zealand's residential solar market, a large 6.6kW solar system represents the sweet spot of system sizing — powerful enough to make a major impact on electricity bills, while remaining within standard network capacity limits.
Why 6.6kW is New Zealand's Most Popular System Size
- Most distribution networks allow up to 5kW of export capacity, which a 6.6kW system with a 5kW inverter optimises
- The STC government rebate is maximised at this size class
- Sufficient generation for most New Zealand family homes
- Accommodates future electricity use growth (EVs, pool, more appliances)
Expected Daily Generation
A well-designed 6.6kW system typically generates 26–30 kWh/day in New Zealand, 24–28 kWh/day in NSW, and 20–24 kWh/day in Victoria on an annual average.
Contact EFS Solar today for a large 6.6kW solar system quote tailored to your energy usage.