Tauhei Solar Farm
Harnessing the sun to power a sustainable future
The Tauhei solar farm project is a joint venture between Harmony Energy New Zealand and Clarus company, First Renewables. At the time of commissioning in late 2026, it will become New Zealand’s largest solar farm. At an impressive capacity of 202 MWp, it will stretch across 182 hectares near Te Aroha in the sunny Waikato region. It will generate 280 gigawatt hours of renewable electricity generated every year, enough to power approximately 35,000 New Zealand homes.
Breaking ground on New Zealand’s largest solar farm
Construction on Tauhei solar farm officially began with a special soil-turning ceremony to celebrate the start of this landmark project. We were honoured to be joined on site by Hon. Simon Watts, Minister for Energy and Climate Change, Matamata-Piako District Mayor Adrienne Wilcock and Waikato Regional Council Chair Pamela Storey, along with mana whenua representatives (Ngāti Hauā, Ngāti Rahiri Tumutumu), our partners and project supporters, as we broke ground on this exciting project. Watch the video to find out more.

Limitless clean energy with lasting community benefits
The biggest advantage of solar power is that it provides free, abundant, and clean energy. Sunshine is available everywhere and once the solar photovoltaic panels are in place, the farm will generate energy without producing any greenhouse gas emissions. The project will create jobs and business opportunities, during its two-year construction phase, the project will also create around 350 full-time equivalent jobs at the peak of construction, and some permanent full-time jobs once completed.
Recognising the power of community support
We are truly grateful to the Te Aroha West community for their support. Their engagement makes this project possible, and we remain committed to being a respectful and responsible neighbour—both throughout construction and once the solar farm becomes operational in late 2026. We also extend our heartfelt thanks to Ngāti Hauā and Ngāti Tumutumu for their partnership. We greatly value the knowledge, traditions, and enduring connection to the land that they have shared with us.

Caring for the local environment
We are committed to protecting the local environment by:
- The development of ecological and biodiversity enhancements.
- The planting of 100,000 native plants – which provides screen planting, riparian margins, bio-diversity corridors. Already, approximately 25,000 native plants have been planted on the boundary of the solar farm to ensure screen planting is established as early as possible.
- The establishment of a 7 hectare wetland – that can help improve local water quality and foster biodiversity.
By prioritising care for the local environment, we hope to see an increasing number of native species thriving at the solar farm. Parts of the site provide habitat for the critically endangered New Zealand long-tailed bat, or pekapeka-tou-roa, and the trees they roost in will be protected.
The majority of the site will remain in productive farming, transitioning from dairy farming to sheep farming. The photovoltaic panels will not only generate clean energy but also provide shelter and shade for the sheep, helping to retain moisture in the ground during the hottest months of the year.
The ability to graze sheep is one of the many advantages of solar energy – it not only supplies clean power, but it can also make farms more productive overall.

It’s a team effort
Elecnor, a leading global renewable energy engineering procurement and construction contractor, is the lead construction partner to build the solar farm. The solar farm project is supported by a power purchase arrangement with Meridian Energy, who will purchase 100% of the output for the first 10 years of operation. The funding requirements are supported by a syndicated debt facility provided by ANZ, ASB, BNZ and MUFG Bank with MUFG acting as financial advisor on the transaction.
Who is Harmony Energy?
Harmony Energy New Zealand is part of the Harmony Energy group, one of the UK’s leading developers and owners of battery energy storage systems (“BESS”). The company is developing 10 solar and BESS projects between 70 MWp and 250 MWp, taking projects from conception to commissioning.
www.harmonyenergy.co.uk
Who is Clarus company, First Renewables?
First Renewables role within Clarus is to develop and invest in renewable energy projects, both in renewable gas and electricity, with a view to delivering renewable energy assets to help meet the changing needs of energy consumers across Aotearoa New Zealand.
www.clarus.co.nz
Why have you chosen this location for a solar farm?
The site was chosen for a number of reasons, including topography, available area, ground conditions and opportunities for ecological and environmental enhancement. Of key importance is the location of the site in proximity to the Waihou Substation, where electricity is able to be dispatched to the National Grid.
How do solar panels work, and how does the power generated by the solar farm reach our homes?
Solar panels convert irradiance (sunlight) received from the sun, into electricity through a process called the photovoltaic effect. The direct current (DC) electricity generated by the solar panels is converted to alternating current (AC) via an inverter, which connects to site substation. From there, the electricity is transmitted to the National Grid via the Waihou Substation.
Do the solar panels generate any glare or noise?
The solar panels have no moving parts, make no noise and create no harmful emissions. The inverters on site will produce a slight hum, however these are located away from the external boundaries and very little to no noise will be audible from beyond the site boundaries.
Solar panels are designed to absorb rather than reflect light and therefore produce very little glare. Most of the glare that is produced will be screened from roads and neighbours with landscape planting around the boundary of the project site.
Do the solar panels shift to capture the sun, or are they fixed in place?
The solar panels on this project will be fixed in place and do not rotate or move.
Will the solar farm be visible from the roads surrounding it?
During construction and in the early stages of operation some areas of the solar farm will be visible, at a distance, from the surrounding roads. However, large areas of planting, including along all boundaries of the solar farm, will result in the solar farm being screened from all roads within 5 years.
Can the land on which the solar farm is built still be used for farming?
The majority of the site will remain in productive farming, transitioning from dairy to sheep farming. The photovoltaic panels will not only generate clean energy, but also provide shelter and shade for the sheep, helping to retain soil moisture in the ground during the hottest months of the year.
The ability to graze sheep is one of the many advantages of solar energy – it not only supplies clean power, but it can also make farms more productive overall.
What effect will the solar farm have on birds and other animals that call this place home?
The Tauhei Solar Farm includes extensive ecological planting, including the re-creation and improvement of a wetland, biodiversity planting and riparian planting. This ecological restoration is expected to result in increased water quality and significant positive gains for native birds and reptiles.
What roads will be used to access the site during construction?
O’Donoghue Road is to be converted into a one-way road during the construction period. Traffic will flow from north to south from McCabe Road through to Waihekau Road.
Where practicable, heavy vehicle access will avoid peak hours on the road network when accessing the site. The exception to this will be any deliveries from over dimension trucks. Up to 10 such deliveries of plant and equipment are expected during the construction period. Pilot vehicles will accompany over dimension vehicles, and the need for any road closures will be confirmed closer to the time.
A Traffic Management Plan has been prepared for the project and there are strict conditions of consent that we must adhere to in relation to how we use local roads during the construction period.
Will staff be parking on the roads around the site?
All staff car parking is situated within the project site, mainly at the site compound area near O’Donoghue Road. There is also capacity for at least 50 cars to park at each of the laydown areas. This ensures that there is sufficient space on-site for staff parking without relying on parking on the public road reserve.
How will you contact us, if you need to discuss something about the project?
We will keep in touch by email and will send newsletters and other important project information. If you wish to join this list, then please click here.
You are also welcome to leave your name, email, phone and physical address at the following link. This is not a mandatory requirement and will only be used for making direct contact with you if deemed necessary. Your personal information will not be shared outside of this project.
Sign up to our neighbours register here.
What times of the day will you be working at the site, and which days of the week?
Where practicable, works on-site that could generate significant noise will only occur Monday – Saturday, between the hours of 7:30am and 6:00pm. Hours may vary depending on the season to maximize sunlight availability.
On a day-to-day basis, quieter activities may occur outside of these times, in terms of site preparation for the working day, and/or shutting the site down at the end of the day.
A Construction Noise and Vibration Management Plan has been prepared for the project and there are strict conditions of consent that we must adhere to around the amount of noise we can generate and when.
What can we do if we think you are making excessive noise?
If you think that we are making excessive noise, then please contact the Community Liaison Officer at [email protected]. The complaint will be registered and details such as time, date, nature of the noise, complainant details, action taken in response, and any corrective measures taken.
A Construction Noise and Vibration Management Plan has been prepared for the project and there are strict conditions of consent that we must adhere to around the amount of noise we can generate and when.
Will there be any updates on how the project is progressing and when will construction be completed by?
We will keep in touch by email and will send newsletters and other important project information. If you wish to join this list, then please click here.
The construction of the solar farm will be completed in late 2026 – early 2027.
Will the solar farm be extended?
While an extension to the Tauhei Solar Farm is currently being considered, no resource consent has yet been sought or granted. Any proposal for an extension to the solar farm will need to proceed through the appropriate consenting channels and consultation with neighbours will occur prior to any such consenting process taking place.
What are Electromagnetic Fields and are these present in the solar farm?
Electromagnetic fields (EMFs) are present wherever there is electricity – including in homes, schools and workplaces. They are produced by power cabling, televisions, microwaves, cell phones and many other common household appliances. The strength of EMF’s decrease rapidly over distance, and following many studies over the past 30 years, the World Health Organisation concluded that there is no evidence to confirm the existence of any health consequences from exposure to low level electromagnetic fields. Nonetheless, we understand that some people may be concerned about EMF’s from the Tauhei Solar Farm.
The electromagnetic fields produced by energy producing solar farm equipment are about the same strength as common household appliances[1]. High Voltage equipment within the solar farm and the cabling connecting the solar farm to the Waihou sub station will be constructed in accordance with guidelines set by the International Commission on Non-Ionizing Radiation Protection, being the international guidelines accepted by the World Health Organisation and the New Zealand Ministry of Health, ensuring there are no adverse health impacts.
[1] Health and Safety Impacts of Solar Photovoltaics | NC State Extension Publications, NC State University, Health and Safety Impacts of Solar Photovoltaics, 2017.