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
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..
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Frequently Asked Questions
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?
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?
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.