The Challenge
Our Nelson-based client wanted to live year-round in a fully self-sufficient tiny home with solar. Being completely off-grid, energy security was essential. The goal was to install an off-grid solar system that could run independently of the grid while maintaining the flexibility to connect if needed, and providing two full days of power without solar generation.

The Solution
AA Solar designed and installed a custom off-grid solar system in Nelson, NZ, tailored to the client’s lifestyle and daily energy demands. The system included:
- 10 x 440W N-Type TopCon Black Frame Solar Panels
- 1 x Deye 5kW Hybrid Inverter
- 1 x Deye LV Battery Power Distribution Unit (IP65 rated)
- 2 x Deye LV Stack Battery Packs (51.2V)
The setup also integrated a backup generator connection to ensure reliability, providing extra peace of mind during extended cloudy periods.

The Outcome
The result is a robust, high-performing off-grid solar system suited for permanent living in New Zealand’s variable weather conditions. The customer now enjoys year-round energy independence, reduced reliance on fossil fuels, and confidence in continuous power regardless of the conditions.
At AA Solar, we worked closely with the homeowner to create an optimal design for a reliable solar power system at a competitive price, a true example of how quality engineering and local expertise deliver lasting off-grid performance.

Conclusion
This project demonstrates how a carefully designed off-grid solar system can provide complete energy independence for tiny homes. For homeowners seeking self-sufficient living, hiring a professional off-grid specifier and installer like AA Solar is the first step. We make sustainable living both practical and achievable. To learn more about our services, contact our team today!
Frequently Asked Questions
Get answers to common questions about off-grid solar power for time homes here.
What maintenance does an off-grid solar system for a tiny home typically require?
Generally, systems are relatively low-maintenance as long as the battery remains well ventilated and the panels are cleaned occasionally with water and a mild detergent. For added peace of mind, you can book an annual service to check connections, run inverter diagnostics and battery health checks.
Do tiny-home off-grid solar systems in New Zealand require council approval?
Rooftop solar panel installations, whether for tiny homes or standard dwellings, are now generally exempt from requiring a building consent as long as the work complies with the NZ Building Code for rooftop arrays, the total area is under 40 m², and the site is not in a very high wind zone.
For off-grid systems, full compliance with electrical safety regulations (such as AS/NZS 3000 and AS/NZS 5033) is still mandatory, and an electrical inspector's sign-off is typically required to validate insurance and warranties.
How does off-grid solar system work?
An off-grid solar system captures sunlight through panels, stores energy in batteries, and uses an inverter in supply electricity to your home. Often with an backup generator when energy needs exceed those available from the solar system.

