Project Overview

The Leeston Solar Farm project is a proposed Solar Photovoltaic (PV) project located near Leeston, in the Canterbury region. It is a 67 MWp project developed & operated by Genesis Energy Limited. The project spans 111 hectares and comprises nearly 74,400 solar panels to generate up to 110 GWh of electricity annually, delivering power via the Orion Network into the greater Christchurch electricity distribution area. 

The estimated cost for the project is approximately NZD 110 million and will power nearly 15,700 households. Genesis announced a conditional agreement to acquire a consented solar farm site near Leeston in February 2025. It described it as the company’s fourth solar project site. 

The final investment decision was expected in the second quarter of Genesis's financial year ending 30 June 2026. At the April 2025 opening of the adjacent Lauriston Solar Farm, Genesis CEO Malcolm Johns confirmed Leeston was expected to receive the green light in late 2026 and start generating in 2027.

Genesis acquired the site from the entity that secured the resource consents, thereby removing the planning risk before it commits capital. This developer-acquirer model is increasingly common in the New Zealand solar market, where specialist developers carry projects through the resource consent process and then sell consented sites to large-capital generators.

The project is aligned with Genesis's broader Gen35 strategy. It aims to reach 95% renewable electricity generation by 2035, with solar development a central plank. 

Genesis's solar pipeline in 2025 comprised four sites: Lauriston (commissioned April 2025, 63 MWp, Canterbury South Island), Leeston (67 MWp, Canterbury South Island), Edgecumbe (127 MWp, Bay of Plenty North Island), and Foxton (180–200 MWp, Manawatu North Island — in the SolarGen JV with FRV Australia). Of these four, Leeston is described as the most likely to enter construction first after Lauriston.  

Leeston Solar Farm Project Location

Leeston Solar Farm is located near Leeston in the Canterbury Region on the South Island of New Zealand, roughly 40 km southwest of Christchurch on the Canterbury Plains. It is in proximity to the Lauriston Solar Farm at Methven. It occupies farmland in the Selwyn District. 

It was developed as part of the region’s recent push to add utility-scale solar capacity to complement hydropower and wind generation.  

Project Background

The Leeston Solar Farm originated with KeaX, a joint venture developer that applied twice to the Selwyn District Council for resource consent for a solar farm near Leeston. KeaX submitted its first application for a 58-hectare solar farm at Brookside, near Leeston. It got declined by the commissioner in March 2023. 

KeaX revised its application to a 111-hectare site along Buckleys Road and Branch Drain Road at Brookside, approximately 10 km north of Leeston, and received consent. That consented site is what Genesis Energy agreed to acquire in early 2025.

Genesis publicly announced a 500 MWp solar pipeline across New Zealand when forming the SolarGen joint venture with FRV Australia in late 2021. The Leeston site, at 67 MWp, is the direct successor to Lauriston on the Canterbury Plains and shares similar terrain, grid characteristics, and meteorological conditions. 

Genesis announced the Leeston acquisition in February 2025 with a projected cost of USD 110 million and a final investment decision expected in Q2 of the financial year ending 30 June 2026. At the Lauriston opening ceremony in April 2025, Johns reiterated the expectation of a late 2026 green light for Leeston.

Leeston Solar Farm Current Status

The Leeston Solar Farm project is in the pre-construction phase with resource consent received for the 111-hectare site. As of May 2026, no public confirmation of a final investment decision (FID) or construction commencement has been announced. Construction is expected to start in FY26, following the FID, with operations by 2027. 

Project Stakeholders Details

Leeston Solar Farm Project Cost Details

Project Scope

The following is the project scope of the Leeston Solar Farm project:

• Site work: Clear, grade, and prepare leased land; install access roads, drainage, fencing, and erosion control measures.
  

• PV system: Procure and install PV modules, mounting structures, inverters, transformers, medium-voltage cabling, combiner boxes, and DC/AC protection equipment.
  

• Balance of plant (BOP): Civil works, foundations, cable trays/conduits, junction boxes, earthing/grounding system, lightning protection, and in-plant transformer stations.
  

• Electrical interconnection: construct on-site medium-voltage switchyard and connect to the designated grid interconnection point, including any required transmission upgrades, protection, and SCADA integration.
  

• Health, safety, and quality: Implement HSE management system, emergency response plan, quality assurance/quality control (QA/QC) procedures, and contractor safety oversight.

Project Timeline

Benefits

The following are the benefits of the Leeston Solar Farm project:

• Aligns with the net-zero target: With a capacity to deliver up to 67 MWP to New Zealand’s grid, the project helps reach the net-zero target by 2050.
  

• Aligns with Genesis's broader Gen35 strategy: It aims to reach 95% renewable electricity generation by 2035, with solar development a central plank. 
  

• Reduce dependence on fossil fuels: Reduces dependence on fossil‑fuel‑based generation, particularly during “dry years” when hydropower is constrained.
  

• Improves system reliability: The project helps balance supply during low hydro & wind levels, overall, enhancing system reliability.
  

• Generates lease income: The solar farm generates long-term lease income for Leeston’s local farmers, reducing exposure to volatile dairy or crop‑price cycles.
  

• Environmental benefits: Produces clean electricity with no combustion, water use, or air pollution, and has a very low noise impact on neighbors.

Conclusion

The Leeston Solar Farm is a transformative project, delivering a 67 MWp capacity of renewable energy. It supplies reliable low‑carbon generation, enhancing local grid resilience, and delivering economic and social benefits to the region. 

Spanning approximately 111 hectares, it generates around 110 GWh of clean electricity annually. The project commits to boosting Genesis Energy’s renewable energy portfolio, following the successful development of the Lauriston solar farm. The site will enhance energy security, reduce reliance on fossil fuels, and support New Zealand’s climate goals through lower carbon emissions.

As the country progresses toward a 100% renewable electricity system, initiatives like the Leeston Solar Farm highlight the important role of solar energy in complementing existing hydro and wind resources.

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