Powering New Zealand's Future

About Rua Koha

Rua Koha is a Māori word meaning "lightning on a mountain top" - a symbol of the power of the land, the wind and the sun and the potential for new energy developments to power the future.

We formed Rua Koha in 2025 to provide specialist services to the electricity sector. Based in Nelson, New Zealand, we work with clients across the regions. We're passionate about sharing our knowledge.

Our team has a deep understanding of the energy landscape and the challenges that our clients face. We are a team of experienced professionals who are passionate about the power infrastructure sector.

Key Experience we bring to the table, as we share the process.

• Site identification and landowner negotiations
• Irradiance models and Wind measurements
• Wind and Solar farm layouts
• Energy yeild assessments
• Noise & Visual Impact assessments
• Consenting and land use planning
• Stakeholder engagement
• Detailed design, EPC formation and selection
• Power generation dispatch and electricity market trading
• Module, Tracker, Inverter and Turbine procurement
• Civil, mechanical and electrical design
• Operational & HSE compliance managment plans
• Transmission line route identification
• Grid connection and commissioning process management
• OIA investment stratergy for project finance
• Iwi consultation and tangata whenua engagement

Our Services

• Site Identification and Land Access Negotiations

  We do investigations to confirm potential solar and wind power sites and their generation potential, calculating costs associated with investigation, development, construction and operation phases. We work with clients to develop appropriate Investigation and Development agreements and negotiate these with landowners.

• Solar and Wind Resource Modelling

  Using advanced wind flow modelling software and PVsyst to detail approaches, we identify optimal site layouts considering equipment type, topography, and environmental constraints. We can generate preliminary models from existing data or establish regresive models for targeted monitoring programmes.

• Biomass and Waste to Energy

  NZ Forestry and Biomass resources are abundant, and we can help you identify and access these resources, and model the economic viability of biomass or waste to energy projects, the technology space is mature and we have hands on experience in their design and construction, including mass energy balance, emmissions control and effluent treatment.

• Consenting for Energy Projects

  We manage the entire resource consent process, leading multidisciplinary teams to develop optimal project configurations, manage assessment of effects studies, and handle the consent application and hearing process.

• Design, Finance and Business Case Preparation

  We identify the most optimal engineering design within consent conditions, typically using a vanilla design with proven hardware, and a split contract approach to reduce overheads, we can build a comprehensive bankable business case and optimise to conditions that provide additional value.

• Project Management, Grid Connection and Commissioning

  We manage the entire project management process, if consenting has been completed, we can offer Construction managment and Commissioning services, such as Contract specifications and scopes, Design reviews, Quality Assurance and EIPC Commissioning Plans and Engineerging Methodologies.

Contact Us

Based in Nelson, New Zealand, we work with clients in New Zealand and Australia. Get in touch to discuss your renewable energy project.

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