Save on Power Bills
Reliable Solar Systems
Safe Installation
Ongoing Support
Ko e Me‘a ‘e Lava ‘e he Solar ‘o Fai Ma‘au
What Solar Can Do for You
- Reduce monthly power bills
- Predictable energy costs
- Clean and quiet power
- Long-term investment
100 %
Renewable Energy
25
Years Typical Panel Life
365
Days of Power Each Year
- RELIABLE
- LOCAL
- CERTIFIED
- EFFICIENT
- QUALITY
- DURABLE
- RELIABLE
- LOCAL
- CERTIFIED
- SUSTAINABLE
- FUTURE-READY
- CLEAN ENERGY
- LONG-TERM
- IMPACT
Ko Hai ‘Oku Mau Ngāue Ma‘á Kinautolu
Who We Help
Solar Island Technology works with organisations across Tonga that want to reduce electricity costs and improve energy reliability. Whether you manage a school, church, government building, NGO project, or business, we design solar systems that suit your building and your budget.
- Schools & Tertiary
- Government & NGOs
- Churches
- Businesses
If you pay high electricity bills, solar can help.
100 %
Tongan Owned
Ko e Me‘a ‘Oku Mau Tukuina Atu
What We Provide
Solar Power Systems
Monitoring & Support
Battery & Backup Power
Featured Project / Poloseki Fakamamafa
Best Solution for Your Service
Ko e Hā ‘Oku Fili Ai ‘a Solar Island Technology?
Why Choose Solar Island Technology?
Established Local
Proven Track Record
Deeply Committed
Widely Trusted
Thinking About Solar?
We can visit your site and explain your solar options clearly and simply.
We are committed to quality engineering, safe installation, long-term system performance, and reliable service you can trust.
Hayden Braddock
GENERAL MANAGERKumi ʻa e ngaahi tali ʻoku ke fiemaʻu
Find the answers you need
Solar Island Technology designs and installs solar power systems for schools, churches, government buildings, NGOs, and commercial properties across Tonga. We provide complete systems — from design and supply to installation and training.
Solar panels collect sunlight and turn it into electricity.
An inverter converts that electricity into power your building can use.
If your system includes batteries, extra power is stored for use at night or during outages.
Yes. Solar power reduces the amount of electricity you buy from the grid. Many customers see significant savings on their monthly power bills, especially buildings that use power during the day.
This depends on your system.
If you install a battery system, your building can continue operating during power cuts.
Without batteries, most solar systems switch off automatically for safety.
Most solar panels last 25 years or more. They are designed to handle strong sun, heavy rain, and coastal conditions.
Yes. SIT uses certified equipment and trained installers. All systems are installed safely and tested before handover.
Small systems may take a few days.
Larger systems for schools or commercial buildings may take one to two weeks, depending on size and complexity.
Solar systems require very little maintenance. Panels may need occasional cleaning to remove dust or salt. SIT can advise on maintenance plans if needed.