Expected ROI of household energy storage project in New Zealand 2025

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.

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 home energy storage reduce energy costs?

New research analyses solar generation and demand data across regions under various price pathways, including the role of home energy storage. Residential rooftop solar PV provides a means for consumers to lower their electricity costs, particularly if they choose to move more of their household energy consumption to electricity.

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.

Will Rankine power supply increase wholesale electricity prices in New Zealand?

Concept Consulting’s modelling shows that without thermal generation from the Rankine units as part of New Zealand’s energy storage solution, wholesale electricity prices would likely be 60% higher in the short-term (the next two-to-three years) and 11% higher in the long-term (ten+ years).

Why is fuel storage important in New Zealand?

The choice of fuel used for storage is critical for security, price stability and environmental impact. There is value in New Zealand having diversity for its storage solutions, as seen by the impact of the lack of gas in Winter 2024. Working with every facet of the energy industry, to help clients respond to business issues and trends.