Power companies in New Zealand

Across Aotearoa, there are a range of power companies and plans to choose from. There are also other things to consider, like free off-peak power or bundled services, when deciding what’s right for you.

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The power companies on Billy

The power companies included on Billy support the majority of New Zealand households. They include:

Contact Energy

As one of New Zealand’s largest energy generators and retailers, Contact has over 650,000 customer connections with electricity, gas, broadband and mobile plans. Contact operates 11 power stations using geothermal, hydro and thermal energy to generate electricity for Aotearoa. Contact is making it good to be home with market-leading free power options along with competitively priced broadband and mobile plans.

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Electric Kiwi

We’re fair, flexible and designed to save you money. Our mission is to make mobile, broadband and power better for Kiwis. Enjoy choice deals, awesome service, and no sneaky stuff like contracts or early termination fees. Plus, get an hour of free off-peak power every day! We'd love for you to join us.

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Genesis Energy

Genesis Energy is a long-established New Zealand energy provider supporting homes, businesses and farms with electricity, natural and bottled gas, broadband, EV and solar solutions. With flexible plans and free Power Shout hours, we help people manage their energy in ways that suit their lives. Backed by local generation and a genuine connection to the communities we’re part of, we’re focused on supporting customers today and into the future.

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Mercury NZ

Mercury is a leading multi-utility retailer, offering power, gas, broadband and mobile services. Mercury’s generation assets produce electricity from 100% renewable sources: hydro, geothermal and wind.

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Meridian Energy

Meridian Energy is New Zealand’s largest renewable energy generator and a major electricity retailer. Meridian Energy is committed to delivering clean energy for a fairer and healthier world.

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Mystic Winds

We are a farmer-run electricity provider dedicated to powering our local communities. We focus on one thing — electricity. No confusing bundles or extras, just easy-to-understand electricity plans with electricity buyback at spot market price. Simply priced. Simply powered.

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Nova Energy

Nova is a multi-service retailer and energy generator, offering electricity, natural gas, broadband, landline phone and mobile services to homes and businesses nationwide.

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Octopus Energy

Octopus Energy NZ is revolutionising the energy experience for Kiwis. We use cutting-edge technology and the expertise of passionate energy specialists to deliver smarter, more sustainable energy solutions. As part of the global Octopus Energy Group we are dedicated to making energy affordable and accessible.

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SUPA Energy

SUPA operates distributed solar and battery infrastructure across rooftops around New Zealand. Schools, businesses, farms, clubs and marae host generation and storage assets that become part of a coordinated energy network. The electricity produced is managed through software that stores energy when the supply is high and releases it when the system needs it most. The result is power that is generated closer to where it is used and less exposed to global volatility.

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Toast Electric

Toast Electric is New Zealand’s only not-for-profit electricity retailer, with a focus on social equity and a fair energy future for everyone. Toast’s social-enterprise model means that 100% of profits from general-income customers go right back to supporting those living with low income.

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More power companies coming soon

These power companies are not yet available on Billy but will be added soon. We’re working to bring more options to help you compare and find the best plan.

2degrees

2degrees is a leading full-service telecommunications provider, committed to fighting for fair for Kiwis and businesses. 2degrees provides broadband, mobile, and electricity services to more than two million customers. Since its launch, 2degrees has been on a mission to disrupt the market, standing up for fairness and flexibility in an industry that needed change. With mobile and internet coverage across NZ, and a nationwide retail network, 2degrees keeps Kiwis connected wherever they live and work.

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Adonis Energy

Adonis Energy is focused on empowering homes, businesses and farms with flexible plans, smart energy monitoring, and no fixed-term contracts. What sets us apart is our no-bot personalised service, smart energy consumption, and our rewards and bundle programs, where you can earn rewards for paying on time and save more by combining power with broadband and mobile.

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Ecotricity

Ecotricity is New Zealand’s first and only Toitū climate positive certified electricity product. Your electricity consumption is matched to 100% renewable energy sources on an annualised basis.

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Powershop

Powershop puts customers in control of how they shop for power. The digital shop gives customers the freedom and flexibility to help them manage their power bills and save money in the process.

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Pulse Energy

Pulse Energy is proud to be 100% community-owned. Powering the nation with electricity, gas and broadband across New Zealand.

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Not all power companies are on Billy

If your power company isn’t on Billy, it may be because they’re no longer taking on new customers or they only offer plans to specific groups. For example:

Black Box Power

Black Box Power is a New Zealand energy retailer offering low-cost electricity and gas plans, bundled with a complimentary Black Box NZ Silver Membership for customers. There are no long-term contracts, and the provider focuses on straightforward pricing and member benefits for everyday energy needs.

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Grey Power Electricity

Grey Power Electricity is a partnership between the Grey Power Federation and Pulse Energy that provides tailored electricity, gas, broadband and home phone services to support members. Profits help fund advocacy for seniors, and customers can enjoy flexible payment options and transparent billing.

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Nau Mai Rā

Nau Mai Rā is the first kaupapa Māori energy retailer in Aotearoa, offering power plans built around manaakitanga and community support. The company aims to provide affordable energy while enabling customers to support local whānau and give back through their power usage.

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Wise Pre-Pay Energy

Wise Pre-Pay Energy offers flexible pay-as-you-go electricity plans that let customers top up power as needed with no contracts, bonds or credit checks. The provider’s model is designed to make energy more accessible and controllable for households that prefer prepaid solutions.

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The electricity industry is constantly changing so expect to see more power companies and plans on Billy in the future.