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Selectra New Zealand
Tensor logo
NZ electricity retailer

Tensor electricity

Founded in 2017 and headquartered in Auckland, Tensor supplies electricity to households across New Zealand. Compare plans, contact, app, ownership and reviews below.

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Founded 2017 New Zealand Privately owned

Founded

2017

Years in NZ market

About

Who is Tensor?

The company is headquartered in Auckland, where it bases its senior management, customer operations and regulatory functions.

Tensor was established in 2017. A longer track record means more years operating under New Zealand's regulatory framework and a wider history of customer feedback, billing systems and grid relationships.

Tensor operates independently — it is not part of a larger corporate group. This typically means faster decision-making and a more direct relationship with customers.

The company is based in New Zealand and is regulated by the Electricity Authority and the Commerce Commission.

Tensor plans

Current Tensor electricity plans

Live plan data from the Selectra Energy-Core API. Compare contract length, exit fees, solar buy-back and renewable status side-by-side, then confirm your address-specific quote with the retailer before switching.

Tensor logo
Domestic

Open Term

Contract
no fixed term
Exit fees
No exit fees
Bond / deposit
Up to two months’ estimated electricity supply (if you fail a credit check)

Perks & tags

No exit fees Smart meter required
Tensor logo
Domestic

12-Month Fixed

Contract
12 months
Exit fees
No exit fees
Bond / deposit
Bond up to two months’ estimated electricity supply if you fail a credit check; refunded after 12 months of on-time payments or after final account settlement

Perks & tags

Smart meter required Controlled
Tensor logo
Domestic

24-Month Fixed

Contract
24 months
Exit fees
No exit fees
Bond / deposit
Bond may be required if a credit check is failed; up to two months’ estimated electricity supply; refunded after 12 months of on-time payments or after final bill is paid

Perks & tags

Smart meter required New customer offer
Tensor logo
Business

Open Term

Contract
no fixed term
Exit fees
no exit fee
Bond / deposit
Bond may be required up to the estimated cost of two months’ electricity supply

Perks & tags

No exit fees Smart meter required Uncontrolled Controlled
Tensor logo
Business

12-Month Fixed

Contract
12 months
Exit fees
$300 + GST per ICP
Bond / deposit
May be required if you fail a credit check; up to two months’ estimated electricity supply (refundable after 12 months of on-time payments or after final account).

Perks & tags

Smart meter required
Tensor logo
Business

24-Month Fixed

Contract
24 months
Exit fees
$600 + GST per ICP
Bond / deposit
Bond up to two months’ estimated electricity supply (required if credit check is failed)

Perks & tags

Smart meter required New customer offer Controlled
See Tensor plans in detail

Self-service

Manage your Tensor account online

Pay bills, track consumption, update payment details and message support — without a phone call.

Online account

Web portal for desktop & tablet

  • View and download every bill since you joined.
  • Submit a self-read meter reading.
  • Update bank details, address and payment method.
  • Message customer service without queueing on the phone.
Sign in to Tensor

Get in touch

Contact Tensor

Email / contact form

[email protected]

Head office

30 Pollen Street, Grey Lynn, Auckland 1021

Verdict

What to expect from Tensor

Regulated NZ retailer

Tensor is licensed by the Electricity Authority and bound by the Consumer Care Guidelines for residential customers.

Switching is free

Joining Tensor takes 5–10 working days. Your power supply is not interrupted, and the new retailer handles the transfer with your old one.

Compare before you switch

Always cross-check Tensor prices against other retailers — savings depend on your kWh usage and region.

Save up to $400 per year
Free comparison, no commitment

Not sure Tensor is the cheapest option for you?

Kiwi households can save up to $400 per year by switching to the right retailer for their usage. Compare every NZ electricity retailer in under a minute.

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Common questions

The Selectra expert answers your questions about Tensor

Tensor is one of New Zealand's licensed electricity retailers, regulated by the Electricity Authority. Whether it is the right fit for your household depends on your usage profile, region, and the rates available on the plans listed above. Always compare your quoted price against several other retailers based on your address and 12-month consumption before you switch.

Switching to Tensor is usually completed within a few days, up to a regulated maximum of 10 working days, and your power supply is never interrupted. Sign up online with your address and ICP number (printed on any past power bill). Tensor will handle the transfer with your current retailer, including the final reading.

New Zealand consistently runs one of the greenest grids in the OECD: around 80% to 90% of grid electricity comes from renewable sources (hydro, geothermal, wind), with recent full-year figures sitting above 85% and individual quarters occasionally exceeding 95%. Some retailers (notably Mercury and Meridian) market themselves as 100% renewable. Check the plan badges above — offers tagged green energy are sold as renewable-only.

Most NZ electricity plans have no exit fees on open-term contracts. Fixed-term plans may include a break fee if you switch before the term ends. The "Exit fees" line on each plan card above shows the current policy.

You can reach Tensor by phone. Most retailers also offer in-app support, web chat and an online help centre — see the Account & app section above.