News & Updates
Following the launch of the Investing in Tomorrow report, Nine to Noon's Kathryn Ryan spoke to Dr Saul Griffith about the massive savings opportunity that electrification presents New Zealand households and the nation as a whole, the lessons we can learn from other markets and changes we need to make to our electricity system.

We’re all about the win-win-wins at Rewiring Aotearoa. And, as Dr Saul Griffith says in this presentation, electrification promises to save every New Zealander money, greatly improve the country’s books, and slash our emissions. What’s not to love?
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New research from Rewiring Aotearoa shows electrification could save New Zealand households around $29 million per day by 2040 and massively reduce the country’s emissions.
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More news, views and hullaballoos from the world of electrification, with a big event next week spelling out the economic opportunity for New Zealand; red states embracing solar and coppers embracing EVs in the US; Norway getting close to 100% on EVs; hydrogen cars sucking; Europe looking to the sky to get off Russian gas; and exciting news for e-bike entrepreneurs and explorers.
Read moreRewiring Aotearoa has been advocating strongly for rooftop solar, because it's the cheapest form of delivered electricity available to New Zealanders, unlocks a lot of the savings associated with household electrification and would help deal with dry years because there's more sun when it's not raining. So it's always nice when someone agrees with you and a piece by academics Stephen Poletti, Bruce Mountain and Geoff Bertram backs our argument up. As it says: "To alleviate the energy supply shortfalls primarily attributable to low rainfall, we suggest rapidly expanding cheap solar photovoltaics (PV), specifically rooftop solar for ordinary households. Our soon-to-be-published research suggests such capacity can be expanded quickly and cheaply... we encourage the energy minister to make the expansion of rooftop solar the top option for expanding the electricity supply and tackling the gentailer power that bedevils the market. He will almost certainly find it quicker, cheaper and more popular than importing gas.":
Read moreOur ERP2 submission outlines what we think needs to be done to improve the Government's plan to reach our climate targets, electrify the Aotearoa New Zealand economy and build a fairer future energy system for New Zealanders that saves people money and does not leave anyone behind.
Read moreBatteries in homes and businesses may seem individually small, but they could have a significant impact on the security and resilience of New Zealand’s power system. For example, 120,000 homes (or 5% of households in New Zealand) with a medium-sized battery could potentially reduce the peak electricity load by as much as our largest hydro power station, Manapouri. That’s why we’re asking the powers that be for something called symmetrical export tariffs so that customers with solar and batteries are paid fairly for their contribution, the payback time will be reduced and more people will have the confidence to invest in these technologies so the price of electricity can be reduced and we can keep the lights on in the event of an emergency.
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Our hydro lakes are basically like big batteries and we need to save them for when they are most needed, says Mike Casey. Currently it's the job of coal to help keep this big battery charged during a dry year and that's expensive and polluting. But when it doesn't rain it shines and between April-August, sunshine hours are, on average, 5% higher in a dry year compared to the average.
Read moreWe're all charged up this week with some more big - and magical - machines; one of the best looking caravans we've ever seen (plus some EV towing info); how the big batteries in these big machines are starting to play a role in the energy system; a solar breakthrough that might allow us to put solar cells on our clothes, mobiles or cars; and if you liked the movie Don’t Look Up, you might be into a new play at Silo Theatre called Scenes From The Climate Era.
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There is a relevant saying: ‘Information wants to be free’. While the proposed Consumer and Data Product Bill takes a step in that direction, it does not offer the level of freedom that could be technically accomplished, nor the level of freedom that is likely to unlock the maximum level of innovation.
Read moreOne's also helluva cleaner, with the average solar install potentially stopping around one metric tonne of coal from being burned at Huntly, as Mike Casey outlines in his opinion piece about the current electricity situation on Newsroom NZ. Solar is by no means a silver bullet for our energy issues, but more of it on our homes, farms and businesses means we can potentially have our cake (keep electricity prices low for New Zealanders and reduce coal use) and eat it too (give customers with solar and batteries the ability to benefit if prices stay high). There will be benefits for everyone in New Zealand if more people own their power, rather than continuing to rent it. But we need to start thinking about customers as part of the infrastructure, something that the market has not been set up to handle.
Read more"Electricity prices are higher than ever - clean energy charity Rewiring Aotearoa boss Mike Casey wants to change the game with solar power."
The Government has released a document outlining how it plans to meet our emissions targets. However, as stated by many climate scientists and media outlets, the combination of policies proposed in the ERP2 document will not keep New Zealand on track for Net Zero 2050, nor will they enable us to meet our third emissions budget. We want as many New Zealanders as possible to make a submission on the plan and share their main areas of concern and where they see the biggest missed opportunities. This guide will run you through the submisson process, outline our main arguments and even give you an email template to tailor.
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EVs cross a big tipping point in China and upfront costs are expected to keep falling this year; sales of gas hot water systems decline in New Zealand for the first time in ten years; 'why the solar industrial revolution is the biggest investment opportunity in history' and opens up some amazing possibilities; the many benefits of induction cooktops; and Australian comedian Tom Gleeson explains why big power companies might want to put some solar panels on their power stations.
Read moreWith high electricity prices in the news recently, Jamie Mackay talks to Mike Casey about the role solar can play in bringing prices down for households with panels on the roof - and all New Zealanders.
There will be benefits for everyone in New Zealand if more people own their power, rather than continuing to rent it. But we need to start thinking about customers with solar and batteries as part of the infrastructure, something that the market has not been set up to handle. Roll on that world, says Mike Casey.
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In this week's best of, a report showing that batteries beat oil by a long way when it comes to mining, EV sales in New Zealand still growing (and sun is an excellent fuel in Africa), the amazing electric machines currently being built in China, a handy video explainer on the concept of useful energy, and a classic Nissan Leaf commercial that makes you think about the machines that still burn fossil fuel.
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After Mike Casey spoke to almost 100 people in Masterton about the economic and environmental benefits of electrification, long-time councillor Chris Peterson wrote an opinion piece about Rewiring Aotearoa's realistic ‘what’s in it for me’ approach to achieving results, the success of the Electrifying Queenstown event and the momentum that's now building in the region for an Electrify Wairarapa campaign. As he writes: "No matter your political persuasion, one thing that seems to unite us is saving money so it has been encouraging to see genuine collaboration — reflecting, hopefully, a realisation that we are all in this climate crisis together and that electrifying the region means there is also something in it for the community." Where next?
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A new electric dumper in Wellington and new electric buses in Christchurch, an energy hardship project with real world data, a novel scheme in some US resort towns that makes up for outdoor energy use, Rivian's very appealing new charging outpost and easily the best love song we've ever heard.
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Earning a place on this week's electrification podium, Auckland's new electric bus hub (and Palmerston North's big electric bus investment), Germany's new law enshrining solar rights and how tenants can benefit from publicly-owned panels in Zurich, an Australian experiment shows how EVs could play a role during grid emergencies (and why we need smart charging to reduce stress on the grid), and the inside story of New York's first all-electric skyscraper.
Read moreOverall, Rewiring Aotearoa welcomes the objectives of this package of proposals. from the Energy Competition Task Force. We view the package as a critical step in improving energy system outcomes for all consumers. We consider retailers paying consumers fairly as a critical step, and we are mostly satisfied with the Task Force’s approach to this (initiative 2C) and think it will create better outcomes for New Zealand consumers and the energy system as a whole. In contrast, the Task Force’s preferred option around how distributors are required to reward peak input from consumers (initiative 2A) will not in our view meet the Task Force’s (or the Electricity Authority’s) stated objectives.
Read moreShareable linkDownloadFocusing on the emissions reductions at home through electrification is a major opportunity (and challenge) for Aotearoa NZ. Homes, farms, and businesses must play a role in driving emissions reductions through electrification and the potential must be recognised and addressed to our 2035 international climate change target.
Read moreShareable linkDownloadRewiring Aotearoa believes we need to make better use of our existing infrastrucuture, see customers as an essential part of a 21st Century energy system and that electrification will lead to much greater energy security and resilience.
Read moreShareable linkDownloadRewiring Aotearoa's submission to the Electricity Authority on its Network Connections Project - Stage One is in and it is good to see the Authority practicing its statutory objective of protecting the interests of consumers.
Read moreShareable linkDownloadThe Ministry for Business, Innovation and Employment opened consultation on a discussion document about amendments to the Electricity Safety Regulations to expand the permitted voltage range for electricity supply. Rewiring Aotearoa's submission believes changes are needed to prepare for the rapid adoption of customer energy resources, and electricity distribution companies need to be compelled to allow export limits to be increased.
Read moreShareable linkDownloadThe Department for Prime Minister and Cabinet and the Ministry for the Environment proposed a topic for a Long Term Insights Briefing entitled 'Everyone plays a part: building New Zealand’s resilience in the context of global trends and our unique natural environment'. Rewiring Aotearoa's submission says energy security and resilience, critical infrastructure failing and commodity/energy price shocks are especially important for Aotearoa NZ’s resilience to future challenges, and farms can also play an important role.
Read moreShareable linkDownloadOur ERP2 submission outlines what we think needs to be done to improve the Government's plan to reach our climate targets, electrify the Aotearoa New Zealand economy and build a fairer future energy system for New Zealanders that saves people money and does not leave anyone behind.
Read moreShareable linkDownloadThere is a relevant saying: ‘Information wants to be free’. While the proposed Consumer and Data Product Bill takes a step in that direction, it does not offer the level of freedom that could be technically accomplished, nor the level of freedom that is likely to unlock the maximum level of innovation.
Read moreShareable linkDownloadRakiura / Stewart Island faces the highest electricity prices in New Zealand. Successive governments have funded report after report and numerous fly-in visits by Ministers have failed to change this situation for the local community. Rewiring Aotearoa believes the opportunity is to harness existing solar and battery technology to deliver significant cost-of-living savings and reduced emissions at scale via electrification on Stewart Island right now. With financed solar and batteries, electricity usage costs for residents could be halved without delay. Rewiring Aotearoa has been engaging with the local community, who have been sending us their power bills. On Saturday 27th April some of the Rewiring team visited Stewart Island (including Mike Rewi who has strong whakapapa to Stewart Island). What we are hearing from this community is many locals fear the proposals and the likely “preferred option” will be focused on replacing current diesel generators, not on reducing the cost of energy for consumers. Our proposal outlines Rewiring Aotearoa’s pitch for an alternative approach to develop a community-led energy solution for the Island.
Read moreShareable linkDownloadOverall, we encourage the Commission to think beyond competition merely as a driver for innovation, to consider the outcomes from innovation for the long term benefit for New Zealanders. Rewiring Aotearoa believes one such outcome from market innovation is supporting the electrification opportunity for Aotearoa New Zealand. The Commission has the opportunity to play an active role in driving this not just through the energy market, but also through the personal banking market. It is important that these functions are not seen in isolation, but as a system, to better realise the Commission's role in delivering on NZ’s emissions reduction plan, and 2050 Nationally Determined Contribution.
Read moreShareable linkDownload18 March 2024: New Zealand is one of the first places in the world where electric appliances and vehicles are now more affordable than their fossil fuel equivalents. A new report has shown that, on average, homes currently using gas appliances and petrol vehicles could save thousands every year if they went electric and got their electricity from a combination of rooftop solar, home battery and New Zealand’s already highly renewable grid.
Read moreShareable linkDownloadIn this future, consumer infrastructure needs to compete on a level playing field with traditional infrastructure – if a $10,000 battery on a consumer’s premises can provide the same service as a $20,000 supply-side asset (a network or generation investment), the consumer’s asset should be selected for the service. However, today there is a systemic bias towards traditional infrastructure largely because it is seen as significantly more ‘dependable’. There are a variety of historical reasons for this. Our primary context to this submission is that many of the assumptions and rationale for this bias are quickly falling away, and DPP4 provides a significant opportunity for the Commerce Commission (the Commission) to reset the assumptions and correct some of this bias.
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The EA has the ability to take a leadership role in the energy transition on behalf of electricity consumers. Far more than the Commerce Commission’s oversight of EDBs investment plans, the EA’s network pricing workplan gives consumers agency in the development of the electricity system. When consumer agency is stifled, they will likely have significantly worse financial outcomes on their bills. Much of the necessary changes have been demonstrated already locally or overseas, and the remaining question is not if the changes are possible but if we as a nation will have the courage to implement them on the timeline required to drive better energy transition outcomes for consumers.
Read moreShareable linkDownloadPlenty of people need cars (and plenty of people still want them), and other vehicles are literal engines of prosperity. We don't have to give them up to reach our climate goals. We just need them to be electric.
Read moreSolar on our rooftops, farms and businesses can displace the emissions generated by burning fossil fuels in our homes and especially our cars, provide the extra electricity we need to run our electric machines, help bring the cost of electricity down for everyone on the network, and improve our energy security by keeping water in our hydro lakes for when we need it most.
Read moreWe often hear from people who aren’t sure if switching to an electric alternative is the right move. One of the most common questions we get asked is ‘will switching to an electric machine actually reduce my carbon footprint if creating the new machine or materials produces emissions?’It’s a fair question, and we completely agree it’s important to think about the full life cycle of the products we buy and use. Electric alternatives, including vehicles, often produce more emissions than fossil fuel equivalents during manufacturing. But, over the lifetime of the machine, they create much less carbon pollution because they don't burn any fuel.
Read moreFossil fuels for homes, transport and industrial processes make up the vast majority of the country’s total energy consumption. Electrifying the machines that use these fossil fuels means we will use more electricity but much less energy overall.
Read moreAn electrified energy system is actually full of opportunities for redesign, reuse, recovery and recycling. There are opportunities for innovators and entrepreneurs to generate value across the lifespan of every energy asset, not least the return of its components to the manufacturing cycle. To explore this further, Rewiring Aotearoa has partnered with Circularity, local experts in circular design and strategy, to explain what the circular economy is, how to integrate circularity into the design of energy systems, and the role of policy strategy to make it happen.
Read moreThere are no free lunches in energy. But some lunches are far, far cheaper than others. Electrifying everything will massively reduce the overall material and energy requirements of the global energy system. This can be said with high confidence. To be sure, renewable energy systems take materials and energy to build. But this is dwarfed by the mind-boggling scale of extraction, consumption and wastefulness of fossil energy.
Read morePeople sometimes talk about ‘carbon tunnel vision’ – that is, the single-minded pursuit of emission reductions at the sake of everything else. But this is the wrong way to think about electrification. It isn’t only about emissions (even though preventing the world from dangerous overheating is quite the co-benefit). It isn’t only about the tech or the kit: the rooftop solar panels, the batteries, the electrified appliances and vehicles. These are just the means to an end. Electrification is about people and it is a fundamentally better way to power our lives and livelihoods.
Read moreSome big switch energy this week as solar panels go vertical on farms (and on fences), induction disappears in fancy kitchens and celebrity chefs move towards the magnets, Counties Energy pushes a vision of the future that we can get behind, Bunnings spots a trend and launches a new range of EV charging products, and a brilliant game created to annoy asset managers investing in fossil fuels.
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We're getting high on electrons this week as aviation goes electric in New Zealand and around the world, the rise of the anti Elon Tesla Club, how Toyota could be the next Kodak after ignoring the rise of EVs, inside the struggle of a family-owned oil company and more marae add solar and batteries to prepare for emergencies.
Read more2025 is off to an electric start, as BYD announces a big price drop for some models in Australia (and the country hits record EV sales in 2024), Kia goes electric for the Australian Open , Rafa does some electric surfing, and Mike Casey tows tonnes of electric cherries with his EV9, new research from Massey and Lincoln looks at the win-win of combining solar panels and agriculture, and why pay for an expensive, unpredictable fossil fuel subscription when you could lock in the savings (and emissions reductions) of going electric.
Read moreCharge your glasses for the last Electic Avenue of the year, with research from Australia showing areas with higher unemployment rates are more likely to seek out the cost savings and bill certainty of solar, residents of Thames protesting about high petrol prices are reminded that electricity is the cheapest fuel and rooftop solar is the cheapest electricity, the first Windrose electric truck has landed in New Zealand and the efficiency of electricity smashes the other options, why tradies will be the heroes of the energy transition (and have a big role to play in terms of recommendations) and a clever induction stove that doesn't require any wiring changes.
Read moreUsing heatpumps instead of fossil fuels is shown to save lives and money, Powerco's plea to its gas customers that they avoid reality, Paddy Gower visits a zero energy bills home, EV charging sees the light and takes to the streets, and the Popemobile plugs in.
Read moreLots of electric gifts under the tree this week as batteries keep getting cheaper, hydrogen still not the solution for light transport, cutting carbon with electric lawnmowers, how electric wallpaper can help get homes off gas, and solar powered hats, candy floss, festivals and maybe even movies.
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The electric bandwagon is speeding up, as EECA launches a clever cost-saving campaign showcasing the benefits of electric homes, Octopus opens the doors of New Zealand's first zero energy bills home this weekend, the silent solar revolution is spreading through the developed world, a glorious graph that shows energy economics winning over politics, Ford's new EV ute shows its towing prowess, and Mike Casey embraces his inner electric bogan.
Read moreA big week in the long-running battle to turn EVs into batteries on wheels, researchers prove that using cheap solar during the day to heat the water is a good idea for customers and the grid, a solar map of New Zealand that offers lot more detail, tiny turbines (and tiny homes inside massive turbines) and a flood resistant EV.
Read moreWe're sparking joy this week with Saul Griffith's electric solar powered scooter, Australia and Texas hit major solar milestones, Coldplay creates a truly electric atmosphere, Mike Hosking's EV queries answered with a graph, Kia's new concept car, and Counties Energy teaches kids about solar by taking the grand prix to school.
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A bumper crop of electric goodies this week, with Douglas Park school in Wairarapa impressing with its solar, a rare bright spot for the climate as the world continues to run on the sun, UC researchers get funding to push perovskite, the world's most sustainable snowmobile, an EV expo in Christchurch and a true electric tinkerer.
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