News
Registrations open for our quarterly update on 21 April
The Electricity Authority Te Mana Hiko invites you to our next quarterly update, on Tuesday 21 April 10.30-11.30am.
Feedback sought on common quality Code change proposals
We are seeking feedback on proposals aimed at addressing six common quality issues in the Code.
Consultation opens on improving prudential security arrangements
The Electricity Authority Te Mana Hiko is consulting on two proposed Code amendments to improve the efficiency of prudential security arrangements without incr…
Authority to begin competitive MOSP procurement process in June
The Electricity Authority Te Mana Hiko plans to start a competitive procurement process for five Market Operation Service Provider services.
Notification to incorporate the CACTIS into the Code
The Electricity Authority Te Mana Hiko is updating the information-related common quality requirements in the Electricity Industry Participation Code to help e…
Latest retail gross margin data published
The Electricity Authority Te Mana Hiko has published the latest retail gross margin data for the 2024/25 financial year. The RGM is retailer revenue remainin…
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Electricity Authority launches free power comparison and switching site ‘Billy’
New Zealanders can now compare and switch power plans with confidence using Billy, the new, free, publicly-owned comparison and switching site launched today by the Electricity Authority. Named as a nod to the power ‘bill’, Billy will make it easier for households to take control of their power costs.
Electricity Authority issues request for information on Value of Lost Load study
The Electricity Authority has issued a request for information to test market capability and interest in delivering an updated economic study of New Zealand’s …
Register now: webinar on improving network pricing rules for distributed generation
All are welcome to join our webinar at 11.45am–12.15pm, Thursday 2 April to hear about our proposed changes to the network pricing rules for distributed genera…
Half-hourly volume data must be submitted for reconciliation
The Electricity Authority Te Mana Hiko has decided to amend the Electricity Industry Participation Code to require traders to submit aggregated half-hourly met…
Authority begins four investigations into alleged breaches of the Code
The Electricity Authority Te Mana Hiko has started four investigations into alleged breaches of the Electricity Industry Participation Code, and has discontinu…
Hedge market summary report – February 2026
We publish monthly hedge market summary reports to support transparency and build confidence in the market. The reports help electricity market participants un…
How thermal generation costs affect wholesale electricity spot prices
New Zealand’s electricity is generated from hydro, wind, solar, geothermal and thermal fuels. Thermal fuels include coal, natural gas and diesel and are an imp…
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Decision to collect standardised super-peak trading data
The Electricity Authority Te Mana Hiko (Authority) has published a clause 2.16 notice under the Electricity Industry Participation Code formalising the collection of standardised super-peak electricity contract trading information.
The growing role of geothermal in New Zealand’s electricity mix
Geothermal energy provides renewable, reliable, steady low-priced baseload electricity. Recent investment in new geothermal generation has increased the amount of geothermal capacity available to our power system.
Members appointed to new Network Services Technical Group
We have appointed 16 members to the newly-formed Network Services Technical Group.
Frequency and voltage common quality requirements updated
The Electricity Authority Te Mana Hiko is updating the frequency and voltage-related common quality requirements in the Electricity Industry Participation Code…
Workshop held on reactive power and voltage coordination
The Electricity Authority Te Mana Hiko held a workshop on reactive power flows and voltage coordination across grid exit points on 26 February 2026 in Wellingt…