News & Updates
Mike Casey is the CEO of Rewiring Aoteraoa, part of an international movement to accelerate the shift to a renewable, electric-powered economy. Rewiring’s first report is all about the electric home - think rooftop solar, heat pumps, EVs and so on. But Mike is also a horticulturist and a passionate advocate for decarbonising the primary sector. He has the unique ability to win over both farmers and greenies, and politicians just love being seen in front of the electric tractor at his Forest Lodge Orchard - believed to be the world’s-first, electrified, zero-fossil fuel cherry orchard. Mike spoke to Vincent.
"We save such a significant amount of money in energy. It works out to be a 16% increase to profit margin on our farm by using to go electroc rather than use fossil fuels in our machinery and our household. That's led me to focus on how we electrify New Zealand as fast as we can because the savings really do stack up. When we're talking about energy equity and energy hardship and the ened to go through this inevtiable energy transition, that's something I've become super passionate about."

Power prices are rising, and not just because of inflation. But it’s hard to work out how to save money, if you can’t understand your bill. ... The Detail speaks to Josh Ellison, the research and development lead for Rewiring Aotearoa – a non-profit charity working to help New Zealand transition to a low-cost electrified economy. The group has recently released a report into how New Zealand homes can become more electric – and this doesn’t have to mean higher electricity prices. The key, Ellison says, is to use a mix of power from the grid with solar and and home battery (storing cheaper energy such as solar for use when that energy’s not available or more expensive). This option is becoming more attractive as prices for panels and batteries come down, but the group would like to see easier access to finance to install solar.
New Zealand is one of the first countries in the world to reach an electrification tipping point, as prices of $3a litre for petrol and high gas costs makes electric homes more affordable than fossil fuelled alternatives. The Electric Homes report, from the charity Rewiring Aotearoa, shows that a combination of EVs and electric appliances are cheaper over the lifetime of the machines, even with higher upfront costs or a 5.5 per cent interest rate for finance.
Read moreSuch significant financial benefits are expected to motivate consumers towards electrification, regardless of whether electricity distribution networks are equipped to handle the change. The anticipated surge in adoption within New Zealand could mirror the extensive adoption of home solar systems in Australia, propelled by government subsidies. It is hoped that New Zealand will better anticipate and prepare for this grid-edge revolution than Australia managed to do.
Read moreA new paper argues that financing for solar power would be the cheapest and most efficient way to electrify the economy. The Electric Homes report, put together by Rewiring Aotearoa and others, argues that rooftop solar is now far cheaper than any other source of electricity with households well placed to cut their costs and reduce emissions.
Read moreNew Zealand has become one of the few countries in the world where it's now cheaper to run a home and car on electricity rather than fossil fuels.
Read moreFrom an electric tractor and electric chainsaws to irrigation and frost fighting systems powered by renewable energy, Rewiring Aotearoa CEO Mike Casey's made huge savings by turning his cherry orchard electric. He's encouraging Kiwis to do the same with their homes. "It is now cheaper to run an electric home than it is a fossil fuel home, even considering the cost of capital, which is a really exciting situation to be in," Casey said. The [Electric Homes] report showed household electrification could save New Zealanders money and reduce emissions.
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"An EV could still be cheaper to run after road user charges are introduced on April 1, a new study says. But it will depend on where you charge." (Paywall)
Read more"A house that moves to being fully electric - with solar panels and an electric vehicle, even with the cost of finance can save thousands of dollars a year compared to the fossil fuel equivalent. Rewiring Aotearoa - a non-profit organisation making the case for electrification of homes, businesses and communities - has today put out its Electric Homes report. It says New Zealand is likely one of the first countries in the world to have reached a point where electrification delivers both cost and emissions savings."

The Electric Homes Report by independent energy transition charity Rewiring Aotearoa shows the country is among the pioneers in making electric appliances more cost-effective over their lifetime than fossil fuelled ones, even with upfront costs and finance included. Rewiring Aotearoa's chief executive Mike Casey said electric appliances and vehicles were now economically favourable compared to fossil fuel ones, due to their efficiency and reduced operational costs.
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18 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.
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"I had not gone to the Forum with particularly high expectations but it didn’t take long to realise that this was something special. Speakers from across the entire spectrum of the environmental debate took the podium. From the Environmental Defence Society to Federated Farmers, to big business interests like Fonterra, to environmental scientists like Fin Ross, to the fossil free cherry orchardist from Cromwell and his Rewiring Aotearoa initiative, to Wayne Mulligan who discussed the $30 billion dollar bio forestry opportunity for our farming and forestry industries."
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ASB and Rewiring Aotearoa have signed a letter of intent to produce a pilot study on energy transitions in Kiwi homes, examining renewable energy options such as solar panels, batteries, and electric appliances.
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In 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 founders of the world's first fully electric orchard are using their knowledge to help climate-conscious farmers ditch fossil fuels and embrace the cost savings that come with renewable technology.
Read moreMike and Rebecca Casey have what could be the first zero-fossil fuels orchard in the world. Their Forest Lodge Orchard - growing mainly cherries - in Cromwell has no diesel or petrol on site and has the country's first electric tractor.
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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 moreIn July 2023, at a showcase tech demo in Central Otago, New Zealand, the world’s first 100% electric, driver-optional, smart tractor was deployed at the world’s first 100% electric, zero fossil fuel orchard sparking a wave of excitement and interest across the country. Three months later, that same electric tractor made an appearance on New Zealand’s most-watched television show, Hyundai Country Calendar.
Read moreIn a cross-submission, Rewiring Aotearoa has responded to a range of concerns raised by other submitters in the Energy Competition Task Force's consulation.
Read moreShareable linkDownloadWe support the role that government procurement can play in benefitting every community across the motu. We agree that simplifying and streamlining the procurement process is important, and reducing rules is a logical starting point. However, this should not undermine key considerations and past efforts in ensuring government spending supports long-term positive outcomes. Government procurement can support us to go for growth by increasing productivity of energy, which is a fundamental economic input
Read moreShareable linkDownloadOverall, 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.
Read moreShareable linkDownload
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.
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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 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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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.
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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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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.
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The cup runneth over with good electrification news and this week's selection features EVs becoming cheaper than fossil cars in China, a promising peer-to-peer electricity sharing scheme on Aotea / Great Barrier Island, massive growth in renewable generation (and massive opportunity for New Zealand to become the Saudi Arabia of renewable electricity), Energy Mad reaches a milestone, and a special electric toy for the snow lovers.
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On this week's e-highlight reel, electricity generating windows from across the Tasman, the role community-owned microgrids can play in regional areas, the rise of electric boats, and how heat pumps save money and reduce emissions.
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On this week's electrification highlight reel, Contact Energy's new grid-scale battery project with Tesla, how the really big machine manufacturers are going electric, solar power reaches a big audience - and a big milestone - and a succinct summary of the efficiency of electric machines.
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This week on our electrification compendium, the country's coolest coffee delivery van, potentially the country's coolest truck, a new report with lots of amazing graphs on the transition to clean energy, how EVs should be seen as batteries on wheels and Climate Town's explanation of the dirty tricks the gas industry has used to keep us hooked up.
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