Understanding Solar Power System Costs for New Zealand
Explore solar power system costs for New Zealand homes and businesses. Learn how investing in solar panels can reduce your power bills and enhance sustainability.
Key Insight: Bigger systems offer better value per kW. While a 4kW system averages at $2,601 per kW, an 11-12kW system drops to $1,901 per kW, making larger installations a smarter long-term investment for households anticipating higher energy needs, like adding EV chargers or transitioning appliances from gas to electricity.
The SOK 25 kWh Lithium Battery Kit is a high quality lithium iron phosphate solar energy storage battery system designed for houses, off-grid and industrial applications. 1 x high quality metal battery rack. 4 sets of 70mm² pure copper battery interconnection cables. 4 sets RJ45 battery to battery communication cables.
A range of PV inverter capacities was used in the model, with PV array capacities matched to the inverter capacity such that the DC:AC ratios were either 1.0 or 1.2. Terms used when referring to PV system capacities and costs are given in Table 1. Table 1: Terms used when referring to PV system capacities and costs.
Battery capable inverter cost with no PV but with batteries. The above fixed costs also apply in this case. The installed and commissioned battery cost used is 500 $/kWh, with the actual cost being adjusted by the depth of discharge to give 714 $/kWh. So, for example, the cost of the 10 kWh battery used in the model is $7,143.
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