the ACT's #2 Most Popular Solar Installer for 2026
Recognised in the 2026 SunWiz Awards as a #2 Best Rated + Most Popular installer – ACT, based on verified data for the 2025 calendar year.
Choosing a solar installer you can trust is hard — the market is full of bold claims that are difficult to verify. SunWiz Awards exist to help Australian homeowners cut through that: they recognise the solar companies proven by independent installation and customer-review data — not marketing, nominations, or paid placement — to be among the best in their region. Sunstak is one of them, recognised for #2 Best Rated + Most Popular installer – ACT on verified data.
Since 2009, SunWiz has tracked every solar power system installed across Australia, documenting each company’s installation volume. Rankings draw on the Clean Energy Regulator REC-Registry plus verified records from STC service providers, and on audited customer review data for review-based awards. Ranking positions are determined by data, independent of whether a company chooses to participate — SunWiz Awards are determined exclusively by data rather than by judging panels, nominations, or sponsor relationships. As the recognised authority on Australian solar market volumes, SunWiz data is referenced by corporations, NGOs, and government bodies.
Sunstak Energy Geeks is a Canberra based electrification specialist focused on helping homes and businesses achieve energy independence through high quality solar, battery, EV charging, hot water and air conditioning solutions. The company is known for its technical expertise, practical advice and whole home approach to electrification. Sunstak is a Premium Tesla Powerwall Certified Installer, an Enphase ACT Installer of the Year for 2024 and 2025, a SolarQuotes ACT Top Rated Installer for 2024, and is approved under both NETCC and SAA.
