Huntly Unit 5 Outage Extended

MARKET RELEASE

Date: 4 August 2023
NZX: GNE / ASX: GNE
Huntly Unit 5 Outage Extended

Further investigation into Genesis’ Huntly Unit 5 combined cycle gas plant outage has indicated that
return to service is now expected in late May 2024, as circuit breaker components are manufactured
internationally.

High hydro storage, alternative plant availability and wholesale electricity market conditions have
combined to mitigate the financial impact of the outage to date. Genesis is actively pursuing options
to return the unit to service earlier and has material damage and business interruption insurance cover
in place.

The financial impact of this event, based on current market conditions, plant and fuel availability, and
mitigating factors is estimated to be in the range of $20 million to $30 million.

Updates on the return to service of the unit will be provided through the Transpower Planned Outage
Coordination Process (POCP).


ENDS


For investor relations enquiries, please contact:
Tim McSweeney
GM Investor Relations & Market Risk
M: 027 200 5548

For media enquiries, please contact:
Chris Mirams
GM Communications & Media
M: 027 246 1221




About Genesis Energy
Genesis Energy (NZX: GNE, ASX: GNE) is a diversified New Zealand energy company. Genesis sells electricity,
reticulated natural gas and LPG through its retail brands of Genesis and Frank and is one of New Zealand’s largest
energy retailers with approximately 500,000 customers. The Company generates electricity from a diverse
portfolio of thermal and renewable generation assets located in different parts of the country. Genesis also has
a 46% interest in the Kupe Joint Venture, which owns the Kupe Oil and Gas Field offshore of Taranaki, New
Zealand. Genesis had revenue of $NZ2.8 billion during the 12 months ended 30 June 2022. More information
can be found at www.genesisenergy.co.nz