Sunstak Energy Geeks

The guys at Sunstak Energy are very knowledgeable. I got a Powerwall 3 and expansion pack installed, and some of the issues with my solar arrangement/installation by a previous solar company were fixed by the Sunstak geeks. Previously, it never went over 8kW of solar production in 18 months, and the first day after the Sunstak geeks finished installing the battery and fixing the solar panel arrangements, the system reached 8.2kW production. Michael at Sunstak Energy is very experienced and was able to quickly tell me what the best arrangement was. Richard gave me a call after the installation to give me a proper run-through of the system and how to set it up to suit my personal needs. He was able to answer all my questions from his own personal experience with different energy providers and which one would suit my needs/system better. I would definitely recommend these guys, a night and day difference compared to the people I used to do my solar installation previously. Everything was done quickly and hassle-free, and the guys know what they're doing. Cheers, guys!

I can’t rate Sunstak highly enough. We initially obtained 3 quotes; from them and 2 other highly recognisable providers. Sunstak outstripped the other providers on a number of fronts: value for money; customer service; solar and air conditioning advice plus time to install. Their installation was prompt and efficient. We were so satisfied we then took the opportunity of installing a heat pump as the alternative to our old off peak water tank. Since then we have saved over $200 per electricity bill so there is your proof!

We recently had our solar system and battery (Powerwall 3) installed by Sunstak, and we couldn’t be happier with the entire experience. From the very beginning, the team went above and beyond to make sure we felt informed and confident in our decisions. What really stood out was how helpful and knowledgeable the staff were throughout the process. They took the time to walk us through all the available options, not just in terms of solar panels, but the full energy ecosystem, including how the battery would integrate and benefit our household. They were also incredibly helpful in navigating the various government schemes and incentives, making sure we got the most out of what was available to us. Every question we had (and we had a lot!) was met with clear, thoughtful advice and zero pressure. Installation was smooth, the system looks fantastic, and we’re already seeing the benefits. A huge thank you to the Sunstak team. Their expertise and genuine care made a complex decision feel simple and rewarding. Highly recommended!

The team at Sunstak are fantastic, highly recommend. Sage was super helpful (and very patient) in helping us right size our system and choosing the best components for our needs. Idris and his team from ACT Electrical and Solar Solutions had our job installed and configured with little to no fuss. Super neat install, configured as agreed, all cleaned up and everything up and running in a day! These guys really know their stuff and would not hesitate to recommend their services.

I recently had Sunstak install my solar panels and a Tesla Powerwall 3, and I couldn't be happier with the process. It was a 5/5 experience from start to finish. Amanda started things off by sending a clear quote and taking the time to explain everything to me so I knew exactly what I was getting. When it came time for the paperwork, Bec helped me gather all the documentation needed to secure the rebates, which made things so much easier. Finally, Richard wrapped things up with a great post-installation handover to ensure I knew how the system worked.

Sunstak was fantastic!! My whole process from start to finish was flawless. Amanda was great with organising my quote and any questions I had. They were well priced and installers were very helpful and cleaned everything up when they were finished.

Dealing with Sunstak was an easy and straightforward experience from the initial drop in conversation with Amanda, to asking many questions re adding a battery to an existing solar system, to updating the order to adding an extra battery, and finally to the installation and commissioning of the solar battery system. Initially I was looking at 2 x 5P Enphase batteries and ending up ordering and installing with 3 x 5P batteries (very happy I did as the 3 batteries cover the home usage each night since installing in July 2025), The Sunstak people are friendly to deal with and very knowledgeable about the Enphase batteries and other brand heat pump hotwater systems and airconditioning systems. For the battery install, Sunstak used a subcontractor firm( I believe) who installed the 3 batteries in one day and who did a professional job integrating the batteries with the existing solar system. I would definitely recommend Sunstak for any further purchases and installs.