Solar · Storage · Electrification | SA / VIC / NSW
Energy independence.
Engineered properly.
Solar, batteries, heating, cooling and energy-efficiency systems engineered around the way your home or commercial actually uses power.
Lower your power bills. Store more of your solar. Reduce your reliance on the grid.
Australian Financial Review recognition
#47
AFR Fast 100
2024
#68
AFR Fast Starters
2021
2016
Established
SA · VIC · NSW
Operations
Australian
Owned & operated
Accredited
Installation teams
The problem with solar alone
Your solar works all day.
Your power bill shouldn't start at sunset.
- 01MorningSolar begins generating.
- 02MiddayYour home may generate more power than it needs.
- 03AfternoonExcess solar may be exported to the grid.
- 04EveningYour family comes home and energy demand increases.
- 05Without storageMore electricity may need to be imported from the grid.
- 06With a batteryMore of the energy generated during the day can potentially be stored and used later.
Keep more of the energy your roof generates.
Calculate My Battery SavingsIndicative only. Actual generation, export and storage outcomes depend on your property, usage, tariff and equipment. Subject to assessment.
01Commercial credibility
From a single site to a national property portfolio.
Trusted where energy performance matters, assessment, engineering, incentive modelling, accredited installation and after-sales support under one roof.
Selected organisations Esena has delivered energy-efficiency projects for. Logos indicate project delivery, not endorsement.
02Start here
I'm upgrading my…
Residential
- Solar
- Battery storage
- Air conditioning
- Heat-pump hot water
- Virtual Power Plants
- Energy independence
Commercial
- Commercial solar
- Commercial battery
- NSW PDRS
- Victorian VEU
- Strata & apartments
- Multi-site rollouts
03What Esena engineers
One energy partner. From the switchboard to the grid.
Esena is an energy-efficiency and electrification company, not a solar retailer. Five capabilities, one engineered system.
04Why Esena?
We don't sell a battery. We engineer a good system.
10 years and still here
Battery warranties can run for a decade. Esena has already been here for one.
System first. Brand second.
We assess the property, energy usage and goals before recommending equipment.
Multiple technologies
Solar, storage, HVAC, hot water and energy efficiency designed as part of the bigger energy picture.
Local people on the ground
Operations across Adelaide, Sydney and Melbourne.
Support after installation
Product-specific support, troubleshooting and escalation when customers need help.
Commercial-grade experience
Experience delivering energy-efficiency projects for major Australian organisations.
05Residential social proof
Real residential properties. Real installations. Real customers.
Verified reviews from Google, ProductReview and SolarQuotes, across solar, battery, air conditioning, heat pump and commercial installations.
Kym Wenham
5 months ago
“We were very happy with our experience with Esena Energy. Their team of installers arrived on time and on the date arranged and worked very efficiently to install 21 panels and a 24kw battery within a day and with minimum interruption to our day. A very neat installation was completed.”
Leigh Cahill
4 months ago
“After enquires to several suppliers for solar panels and battery installation, some of which didn’t bother follow up on calls, a friend recommended Esena. Dominic was really responsive and provided several quotes to suit what we wanted after multiple changes of mind. Work was scheduled in reasonably quickly and the installation went very smoothly, even adjusting timing where they could to suite our families schedule on the day. Dominic also followed up after installation to ensure things were working as expected and that we were satisfied overall.”
K2Rama
3 years ago
The best service in Adelaide!
“This is not the first time I have used Esena Energy for air-conditioning. Dom and the team are absolutely brilliant. They are reliable, competitive and their installers are quick and tidy. Couldn't ask for better and I will definitely be using them again! Karen R”
Cameron H.
3 years ago
Seamless and easy
“Dominic from Esena was brilliant to work with. He communicated with me throughout and ensured the install went smoothly and according to plan. The air con looks great and was as expected.”
John Bentley
4 years ago
Air-conditioning installation
“Pleasantly surprised at the entire process, from original enquiries through to installation a very slick and professional organisation. The installation team where big on communication and attention to detail. These guy come highly recommended.”
Nicholas Zayat
2 years ago
“Dimitri is a great operator. His company has done many lighting upgrades and hot water upgrades for sites I look after. Highly recommend his services.”
Neuron
3 years ago
Great Lights
“Organized upgrade to our old lights in the warehouse. Quick and straight forward, end result is fantastic.”
Steve
3 years ago
Great Result!!
“Esena Energy were so easy to work with and their service was of a very high standard. Dominic was extremely helpful, understanding and professional. Our warehouse is so light and bright now and Jesse, the installer worked in with the warehouse really well. We're a very satisfied customer and would recommend to everyone.”
Sebastian
3 years ago
Fantastic service & result
“Esena Energy were very professional. Communication is definitely their strong suit. Dominic was very good with updates and Jesse who ran the installation on site was equally professional. I wish we had done this earlier, as the light output is far superior.”
Nelson
2 November 2022
Integrity and Quality
“Dimitri and his team did an exceptional job in helping us choose the right system for us. Their honesty and integrity were much appreciated and the quality of the system and build was second to none. I will certainly be using Esena again for my future home energy needs!”
06Your system
The system we've engineered for your home.
We don't sell you components. Every Esena design starts with how your household actually consumes energy, then the hardware is specified to match.
Solar supplies the home first, charges the battery, and any excess may be exported to the grid.
Illustrative. Backup, export and VPP behaviour depend on the equipment installed, your switchboard configuration and the programs you join. Subject to assessment.
- Solar
- Sized to daytime load + battery charging
- Battery
- Matched to evening consumption
- Inverter
- Hybrid, backup-ready
- Backup
- Essential circuits protected
- VPP
- Compatible hardware, your choice
- Monitoring
- Whole-home visibility, app-based
07Government incentive expertise
Incentives change the numbers. We model them properly.
Esena works inside federal and state programs every day, certificate creation, eligibility assessment and administration included. Incentive values vary and program rules can change; we confirm your position before you commit.
BESS3 · BESS4 · BESS5
NSW PDRS
New battery pathways for NSW apartments, commercial clients and larger commercial sites from 1 September 2026.
Check My EligibilityVEU program
Victorian Energy Upgrades
Incentive-supported air-conditioning and heat-pump hot-water upgrades for Victorian residential properties and commercial clients.
Check My UpgradeNational
Federal Battery Incentives
Eligible households and commercial clients may access federal battery incentives. We model the value for your system.
Calculate My Benefit
Commercial & property
Energy is an operating cost. We engineer it down.
Solar, storage, electrification and energy-efficiency projects for Australian commercial clients, property groups and multi-site operators.
Genuine calculators. Not lead forms in disguise.
Model battery savings, solar ROI, incentive values and payback ranges before you speak to anyone. Indicative results, transparent assumptions.
Support doesn't stop when the installer leaves.
Product-specific guides, monitoring-app setup, Wi-Fi and offline troubleshooting, backup and blackout guidance, for every brand we install.
Generate it. Store it. Control it.