Solar Panel & Battery Installation

Reliable solar and battery solutions for savings, security and everyday freedom.

Your Local Solar Experts

Since 2016, Ecoefficient has powered homes and businesses across the North Island with thousands of successful solar and battery installations. With nearly a decade of experience, we help clients save money, boost property value, gain grid independence, and reduce their carbon footprint.

Local Experts: Hawke’s Bay, Napier and Most of the North Island

2022 & 2019 SEANZ Best Small Solar Business, NZ-wide (Runner-up)

2019 Hawke’s Bay Small Business of the Year (Runner-up)

2024 & 2023 Tesla Australasian Customer Service Excellence

Join Our Team

We’re looking for a qualified electrician who’s passionate about quality workmanship and renewable energy. If you’re ready to join one of New Zealand’s leading solar installation teams, we’d love to hear from you.

Residential Solar

Commercial Solar

Clean Energy in Action

SigEnergy 15 kWh Solar + 24 kWh Battery + EV Charger

“Ecoefficient were upfront and honest about the challenges and delivered the best solar solution for our home.”

-Jordan H.

75 kWh Ground-Mount System

“Ecoefficient turned my vision into reality, creating a solar farm that powers my property and generates income.”

-Ed

SigEnergy 20 kWh Solar + 24 kWh Battery (Off-Grid)

“Ecoefficient provided expert advice and a seamless off-grid installation that works perfectly.”

-James T.

Our Sustainability Impact and Counting...

20,000+
Solar Panels Installed

1500+
Properties Turned Solar

$46,000+
Donated to Charity

230+
5 Star Reviews

Why Choose Ecoefficent?

As a family-owned business, we bring a personal touch from tailored advice to top-tier installs. With nearly a decade of experience, we’re a trusted name in solar across Hawke’s Bay and the North Island, delivering results-backed systems and ongoing support, long after installation.

Excellence, Start to Finish

We deliver excellent customer service from first contact to installation, with glowing client feedback and a 10-year workmanship guarantee to prove it.

Proven Products.

We install only high-performance systems we’d trust in our own homes, selected for reliability, efficiency, and long-term value.

Lifetime Support.

Our skilled in-house team delivers trusted results, backed by lifetime support, because great service should last long after installation.

Don't Just Take Our Word For It..

      
 Excellent5.0132 reviews
 5.0
 Excellent132 reviews
  Write a review 
 
 
 
    
 
 
      Posted on Google  
   
   Helen Pirihi 
 2 days ago
 
 
 Trustindex 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 Park 
 3 days ago
 
 
 Trustindex 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 Bidwell 
 83 days ago
 
 
 Trustindex 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 Bidwell
  
 
     Posted on Google  
   
   Philip Morton 
 101 days ago
 
 
 Trustindex 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 Hughan 
 112 days ago
 
 
 Trustindex 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 & Irene
  
 
     Posted on Google  
   
   Brett Mead 
 131 days ago
 
 
 Trustindex 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 Flatt 
 131 days ago
 
 
 Trustindex 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 Solutions
  
 
     Posted on Google  
   
   Owen (NZdemon) 
 136 days ago
 
 
 Trustindex 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 Pretty 
 150 days ago
 
 
 Trustindex verifies that the original source of the review is Google. +0
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!
  
 
     Posted on Google  
   
   Phil Chandler 
 211 days ago
 
 
 Trustindex 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

Home and Solar FAQs

How much can I really save by switching to solar?

Yes, we aim to reduce your power bill by around 40-50% with solar alone, or up to 90% with solar and a battery. We cannot guarantee this saving, as it all depends on your power usage and habits.

Do I need a battery, or can I just install solar panels?

While a battery isn’t required for your solar system to function, it can be a valuable addition for many households. We’ll sit down with you to determine whether a battery is the right choice for your property and, if so, what size best suits your needs. On average, most homes benefit from a battery size between 4.8kW and 14kW.

How long does a solar installation take from start to finish?

Most residential systems are fully installed within 1–3 days. For larger commercial projects, we’ll provide a clear installation timeline to keep your business running smoothly.

What size solar system is right for my home or business?

Every property is different. Although an average family home needs around 10 panels. We do a proper analysis of your power-bill & usage to decipher what size is best for you. It can be anywhere from 6-200 panels.

Can solar panels still work on cloudy or rainy days?

Yes! Solar panels still generate electricity on cloudy days, because the convert daylight, not direct sunlight. Even on cloudy days, your system keeps producing clean energy for your home or business, just at a slightly reduced rate.

Are there any funding options available?

Yes, you can finance your solar system with 0–1% interest loans through most major banks. As SEANZ members, we meet the requirements your bank needs to approve your application. We’ll help you understand what incentives apply and guide you through the process.