Heat pumps for your home.
ISD: Malta’s most trusted solar and energy efficiency company
60,000+ Maltese families served
25 years strong. 100,000 panels installed. Built to last—just like your solar warranty.
Trusted partner of Tesla, Sunpower and SolarEdge
Innovative products designed to give your home more energy, smarter solutions, and complete control.
Local support, fast installation and 5-year warranty
Start with €0 down and predictable monthly payments or go for no-debt options only if you want.
Your old water heater is a silent thief!
30
of your electricity bill goes to heating water. That’s around €40–€60 per month.
600
goes to just heating your water annually.
3000
That’s how much your old heater is costing you over 5 years.
You’re paying more for...
Slash your bills with a heat pump
1,400
IN GOVERNMENT GRANTS
The cleanest, smartest and most affordable solution to unlimited hot water, heat pumps are designed for efficiency and sustainability.
By switching over, you’ll reduce your energy bills, lower your carbon footprint, and enjoy a reliable supply of hot water all year round—powered by the latest in renewable technology.
- Savings — from your very first bill
- Constant hot water on demand
- No more energy waste, no more guilt
- Increase in your property value
- Smarter, cleaner home
The most efficient water heating system in Malta
Extracts heat from air — not electricity.
More power, every day. From scorching summer sun to winter clouds, make every inch of your roof count.
Cuts your water heating bill by up to 70%
Get maximum power from every panel, every day. Optimisers ensure peak performance, smart monitoring, turning sunlight into savings.
Quiet, compact, stylish and fully automated
Powerwall stores solar energy to keep your home running—day night, and during power cuts. Save money, stay protected, and stay powered.
Works day and night, rain or shine, 365 days a year
We monitor every panel, so you don’t have to. If there’s an issue, we’ll spot it before you even notice.
Secure your grant now with just €100
Fill out this form to request a quote.
Why Energie?
Built for Durability
No rust, no anode, no maintenance. Tanks made from 2205 Duplex stainless steel — the highest-grade material in the market — for maximum corrosion resistance.
Heats Faster, Wastes Less
Faster warmth, lower bills. Titanium resistance and expert welding boost heat transfer.
Industry-Leading Insulation
Cuts energy use, eases heat pump load. 8cm eco-friendly foam keeps water hot longer.
Compact, High Performance
Built-in recirculation port for space-saving design, full power output.
Efficient Heat Exchange
Unique D-shaped condenser + thermal grease = faster, more effective heat transfer.
Designed to Withstand Pressure — Literally
3000 Series aluminum resists pressure and corrosion for long-term reliability
You won't have to lift a finger
50
PAID BY THE GOVERNMENT
Switching to a heat pump has never been easier. From securing your government grant to installing a top-tier unit with full testing, we handle the entire process from start to finish.
- Top-tier heat pump unit
- All installation and testing
- Government grant application and approval
- 5-year warranty
- Aftercare and local support
Our zero hassle guarantee
Tailored Solutions Made Simple
Start by requesting a free quote. One of our expert energy advisors will help analyse your electricity bill, assess your eligibility for government rebates, and design a custom heat pump system that perfectly suits your needs and budget.
Better Technology and Payment Options
Knowledge is power. Our team will guide you through the latest energy saving technologies, highlighting their benefits and how they fit into your lifestyle. Plus, with our €0 down payment options, transitioning to cleaner energy has never been more affordable.
Save on Energy, Reap the Rewards
Congratulations! You’re now part of a growing community of smart homeowners who’ve turned their electricity bills into investments. With your new heat pump system, you’re not just saving money—you’re adding value to your home and protecting the environment.
Real reviews from real customers
I. Magro Dingli – 2024
"Very happy with both the Solar Edge Solar System and the Tesla Powerwall!"
E. Sacco – 2024
Not a single problem, sales and aftersales has been without any problems. Highly recommended!
G. Muscat – 2024
Having bought a water filter system, solar panels & solar battery from ISD, I can truly say a "tried and tested" company with excellent service and high quality products all round.
O. Camilleri – 2024
All was handled well by ISD from initiation stage till full installation of solar edge solar panels with battery and backup.
Request a quote
Start by requesting a free quote. One of our expert energy advisors will get in touch and help recommend the perfect system for you.
Heat Pump FAQs
How much energy can I generate with this system?
This system is designed to maximize energy output, even in partial shading conditions, thanks to SolarEdge optimizers. The exact amount depends on factors like panel placement, roof size, and sunlight availability, but our high-efficiency panels deliver top-tier performance.
How does the Tesla Powerwall work with the solar panels?
The Powerwall stores excess energy generated by your solar panels. You can use this stored energy during the evening, at peak times, or during a blackout, ensuring a seamless energy supply.
How much backup power can the Powerwall provide?
The amount of backup power depends on your energy use, but most households can keep essentials running for hours to days, depending on battery capacity and solar generation.
What happens during a power cut?
With Tesla Powerwall’s backup capabilities, you’ll have power even when the grid is down. Essential appliances and circuits will continue running, providing peace of mind and uninterrupted energy.
Will I still need to buy electricity from the grid?
Not always. With Powerwall, you can store enough solar energy to reduce or even eliminate your reliance on the grid, especially during peak hours.
Is there a government rebate or incentive available?
Yes, under the Solar Battery Rebate, you can get 80% off the cost of installation if you qualify.
Why should I choose this system over other solar setups?
This combination of high-efficiency panels, SolarEdge optimizers, and Tesla Powerwall offers unmatched performance, smart technology, and reliability. It’s a premium system built for those who demand the best.
Can I expand the system later?
Yes, the system is scalable. You can add more panels or an additional Powerwall as your energy needs grow.
What maintenance is required?
This system is low-maintenance. Panels may need occasional cleaning to remove debris or dirt, and the Powerwall is virtually maintenance-free. We also offer optional monitoring and service plans for added peace of mind.
How long does installation take?
Installation typically takes one day, but it may vary depending on the complexity of your setup.
