Expected ROI of solar plus storage project in New Zealand 2025

Will regulatory reforms reshape New Zealand's solar industry?

New Zealand's solar industry stands at a pivotal moment as regulatory reforms promise to reshape project economics and market opportunities. The Energy Competition Task Force's recent proposals signal a fundamental shift in how solar generation will be valued and compensated.

Can batteries solve New Zealand's energy crisis?

Batteries alone do not solve the challenge New Zealand has of higher energy demand but lower renewable energy availability in winter. The combination of solar PV and batteries might help with this, especially if PV and batteries are deployed in locations with relatively higher winter solar generation.

Is solar PV a viable option for New Zealand households?

This is the first study in New Zealand to use detailed and high-quality data for both solar supply and residential demand. It shows solar PV is likely to be financially viable for a significant proportion of New Zealand households, particularly for those who consume a lot of energy.

Can time-of-use retail prices improve the return of solar PV?

In the last section it was shown that time-of-use retail prices can, in some cases, improve the rate of return of solar PV with a battery compared to PV without a battery. However, the improvement is small and often occurs when there is a lower return for a system with a battery relative to one without.

How long does a home solar system last in NZ?

Most home solar systems in NZ pay off in less than 10 years, which means you still get 20 or more years of free energy and freedom from price hikes and blackouts. Check out this image below showing how the cost of your grid power is distributed across five different categories.

Can residential solar PV plus storage reduce peak demand?

From a system-wide perspective, this characterising of financial returns to households reveals the potential contribution residential solar PV plus storage may ultimately make to reducing peak demand during times of scarce generation and/or network capacity. particularly for high power consumers.