Engineered for Efficiency. Backed by Reliability.
An inverter is a crucial component of any solar power system, it inverts the DC electricity generated by your panels into usable AC power for your property. While panels are the most visible part of a solar setup, it’s the inverter that ensures everything runs efficiently and reliably. That’s why we use premium inverters from Sigenergy and GoodWe, both known for smart monitoring, high performance, and future-ready battery compatibility. Whether you’re looking to power your home or a commercial site, our inverters are built for long-term reliability and to maximum energy savings.
Why Quality Inverters Matter
Investing in a quality inverter means:
- Reliable performance, converts solar energy efficiently, with minimal loss
- Smarter monitoring, track your system in real-time and catch any issues early
- Future-ready design, can easily add batteries down the track
- Proven durability, built to perform flawlessly for years to come
- Maximum savings, more power produced & more value from your system
10 Year Workmanship Guarantee
Ongoing Lifetime
Support
10 Year
Warranty
Sigenergy Sigen
Single Phase Hybrid Inverter
3–12kW
Battery-ready, scalable, and packed with smart energy features perfect for modern homes.
Battery ready – Add storage anytime for full energy independence
High energy yield – Up to 4 MPPTs and 16A input for maximum solar capture
Future-proof & scalable – Supports a DC/AC ratio up to 2, with battery expansion from 5kWh to 48kWh
IP66 rated – Weather, dust, and water-resistant for long-lasting outdoor performance
Built-in safety – Includes DC ground-fault protection for reliable operation
Smart monitoring – Fast setup and real-time insights via the mySigen app
Sigenergy Sigen
Three Phase Hybrid Inverter
5–25kW
Battery-ready, scalable, and designed for larger homes, commercial, and industrial setups.
Battery ready – Supports up to 6 SigenStor batteries per inverter, expandable to 48kWh
High power – Robust three-phase capacity for bigger energy demands and multi-inverter systems
Smart control – Built-in EMS for intelligent energy management
IP66 rated – Weather, dust, and water-resistant for reliable outdoor use
Built-in safety – Includes DC ground-fault protection and black start capability
Smart monitoring – Remote access via WLAN, Ethernet, RS485, or optional 4G
GoodWe Single Phase String Inverter
5kW – 6kW
DNS Series
GW6000-DNS-30, GW5000-DNS-30
The GoodWe DNS G3 inverter is built to power your home efficiently, safely and quietly giving you more control and savings from your solar system.
Dual MPPT – Optimises energy even on complex roofs
Single-phase – Ideal for standard home setups
Smart monitoring – Track performance in real time using SEMS Monitoring
IP66 rated – Weatherproof and built to last
Quiet operation – Runs silently in the background
10-year warranty – Backed by a global solar leader
GoodWe Single Phase String Inverter
5-10kW
MS Series
GW5000-MS, GW8500-MS, GQ10K-MS
Powerful, flexible and ideal for complex rooftops.
Triple MPPT – Perfect for roofs with multiple angles or shading
Single-phase – Compatible with standard residential setups
Smart monitoring – Track system performance via SEMS portal
AFCI protection – Advanced safety against electrical faults
IP65 rated – Dustproof and water-resistant for outdoor durability
110% AC output – Allows for more power when needed
10-year warranty – Reliable, long-term performance backed by GoodWe
GoodWe Three Phase String Inverter
10-20kW
SDT G2 Series
GW10KAU-DT, GW15KAU-DT, GW20KAU-DT
Built for high-performing residential and small commercial systems.
Dual MPPT with 4 inputs – Optimises energy across multiple panel strings
Three-phase – Perfect for larger homes and light commercial setups
98.4% efficiency – Industry-leading conversion for maximum output
Smart monitoring – Track your system with the SEMS portal
AFCI protection – Advanced arc-fault safety for extra peace of mind
IP65 rated – Dust and water-resistant for harsh environments
10-year warranty – Backed by GoodWe’s trusted global support
OTHER PRODUCTS
Posted on Google![]()
Helen Pirihi2 days agoTrustindex verifies that the original source of the review is Google.
We are very happy with our system design and install. Throughout the entire process communication was great and everything explained thoroughly. Special mention to the install team who endured possibly the 2 coldest days of the year on our roof! The ongoing support available post install with meter changes and app help was a key in choosing eco-efficient and has been excellent.Posted on Google![]()
Michael Park3 days agoTrustindex verifies that the original source of the review is Google.
Laura, Shaun and their team are excellent. They listen to your needs, work out your future requirements and are upfront, transparent and very professional. I would highly recommend them to anyone considering going solar. Team were efficient, courteous and did an excellent job. Very happy.Posted on Google![]()
Chris Bidwell83 days agoTrustindex verifies that the original source of the review is Google.
Thanks to Shaun and the team for our recent awesome solar installation. Everything was handled professionally and we are delighted with the result. Cheers, Pam and Chris BidwellPosted on Google![]()
Philip Morton101 days agoTrustindex verifies that the original source of the review is Google.
Very professional team, covered all my questions and fantastic service. In particular it was great to have a solution installed for us on quite a small house. Excellent!Posted on Google![]()
Steve Hughan112 days agoTrustindex verifies that the original source of the review is Google.
We chose Ecoefficient to install our solar panels, inverter and battery setup. From the initial contact, site inspection, inquiry of what we were trying to achieve, quotation, installation, inspection, and commissioning, everything has been handled with professionalism and a friendly attitude. We are so glad we went with Ecoefficient, and it feels good to support a local business. rgds, Steve & IrenePosted on Google![]()
Brett Mead131 days agoTrustindex verifies that the original source of the review is Google.
Deciding on solar is a process that brings up numerous options, jargon and technicalities that can quickly become confusing. Shaun at Ecoefficient solutions guided us through the process of choosing a system that suited us, vs simply achieving a sale. Shaun’s knowledge, expertise and common-sense approach as well as his patience with our questions provided us confidence and the communication throughout the install process was excellent. The install team were friendly, tidy and treated our install as though it was their own house. Very happy with the results and the system and have great confidence in knowing the service continues past the system being completed.Posted on Google![]()
Reiny Flatt131 days agoTrustindex verifies that the original source of the review is Google.
From my first enquiry and request for a quote through to installation and follow up the service provided by Shaun and his Ecoefficient crew has been exceptional. All my questions were answered and explained thoroughly and I am now enjoying my own power and credits on my power" bill". The team who did the installation were very approachable and did the installation with minimum disruption. I highly recommend Ecoefficient SolutionsPosted on Google![]()
Owen (NZdemon)136 days agoTrustindex verifies that the original source of the review is Google.
Absolutely great company to deal with. Explained all options and was was best to suit my requirements. Highly recommend. Great communication. Very pleasant workers who did the install and cleaned up everything, no mess left behind.Posted on Google![]()
James Pretty150 days agoTrustindex verifies that the original source of the review is Google.
After shopping around, we found Shaun and the team from Ecoefficient to be excellent to engage with and provide a comprehensive solution to meet all our requirements. When it came to the install, Shaun was great at problem solving some changes we needed to make to our meter box, and extremely accomodating with a last minute request for an EV charger to be added to the mix. The work completed by the installation crew is excellent, an extremely tidy and high quality install and set up, which we’re really happy with. Sam was great to deal with when it came to the installation day! Comms and post install support has also been great - the team kept us updated throughout the process and made everything seamless for us as a customer. With banks offering sustainability loan products and rates, it’s a great opportunity to unlock some cost efficiency and resilience and with a company like Ecoefficient you can’t go wrong! Thanks to Shaun and the team for a great experience and product!+0Posted on Google![]()
Phil Chandler211 days agoTrustindex verifies that the original source of the review is Google.
From start to finish the team impressed us with their professionalism and knowledge. The overall cost was less than expected and the equipment is top class. The follow up and aftercare is amazing. The installation was done in two days, no mess, no inconvenience and excellent communication throughout. Thanks team