Jul 3, 2024

Media

MBIE predicts surge in electricity demand by 2050, wind and solar lowest cost option to provide it

New Zealand is going to need a lot more electricity as homes and businesses swap out fossil fuel machines for much more efficient electric versions. MBIE has just released a report showing a range of different scenarios and under favourable economic conditions the demand for electricity could rise by 81 percent by 2050. Where we get all that extra electricity from is an important strategic question for New Zealand and the report says wind and solar will be the "least cost" way to meet this demand. At Rewiring Aotearoa, we believe a lot of the extra electricity we need could come from rooftop solar and because it is produced where it is used it is the cheapest form of delivered electricity New Zealanders can get. Batteries are also dropping in price and rooftop solar and battery combinations can reduce peak loads while saving on energy bills. This is vital context for how we choose to build out the energy system to be low cost and highly resilient.

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Jun 19, 2026

Electric Avenue: 19th June

New South Wales gets the memo about the importance of finance and announces scheme offering zero interest loans to households to upgrade to electric stuff; plug-in solar gets the tick of approval to go on sale in the UK soon and the New York Times says it could 'change America'; EVolocity takes electrification to the streets to gets the kids inspired (and eventually employed); a tour of the amazing recycling business Redwood Materials; Think Solar and BYD give it away now; and a skit that cuts close to the bone for many solar dads.

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Jun 18, 2026

Joint letter to the Electricity Authority Board on multiple trading relationships & peer-to-peer trading

Advances in technology and falling costs mean customer-owned solar and batteries can play a critical role in New Zealand’s energy infrastructure - improving affordability, resilience and sustainability. Multiple trading relationships (MTR) and peer-to-peer trading would enable this potential by increasing competition, customer choice, and innovation in the electricity market, unlocking greater consumer benefits from customer solar and batteries.