Hot water from photovoltaics with SolBox
Find out whether SolBox suits your installation, what equipment it needs and what it will cost.
I WANT A FREE ESTIMATE30 to 40% of the electricity bill goes on hot water.
An electric water heater runs on mains electricity. A classic solar system with pipework stalls in winter or under cloud. A heat pump is expensive and needs installation.
There is a third way, and it has no pipework.
SolBox in 15 seconds
DC controller
Takes power straight from your PV panels, no inverter needed
Works under cloud too
An MPPT algorithm finds the best yield at any light level
No permits
It is not self-generation. No grid operator, no study, no connection
Hot water all year round
Up to 100% coverage in winter and summer, on any water heater
Why SolBox instead of the other solutions?
A comparison with the 3 most common ways of heating domestic hot water in a Greek home.
| Electric water heater | Classic solar (with pipework) | DHW heat pump | SolBox | |
|---|---|---|---|---|
| Running cost per year | €400-700 | ~€50 (backup) | €100-250 | ~€0 |
| Winter operation | ✓ | Freezes / drops off | ✓ | ✓ with MPPT |
| Operation under cloud | ✓ | Low yield | ✓ | ✓ with MPPT |
| Pipework / antifreeze | ✗ | Yes | Yes | ✗ None |
| Installation complexity | Simple | Moderate | High | Simple |
| Annual maintenance | None | Yes (antifreeze / pump) | Yes (technician) | None |
| Payback | — | 4-6 years | 6-10 years | 2-4 years |
| Warranty | 2-5 years | 5 years | 5-10 years | 10 years |
The SolBox price is for the DC controller unit. Panels & and installation are set out in the quote.
Is it for you?
HOMEOWNER
Do you already have PV self-generation, or do you want to add a few panels just for hot water? SolBox covers up to 100% of your annual water heating.
HOTEL / AIRBNB
High hot water consumption plus a commercial electricity tariff means a heavy running cost. SolBox pays for itself in 2 to 4 years.
OFF-GRID INSTALLATION
A holiday home, a farm or an isolated unit with no grid connection. SolBox works on its own.
Build your own autonomy
Try the SolBox Configurator. You pick the number of panels, the water heater capacity and the location, and you see cost, yield and expected savings in real time.
BUILD YOUR OWN SYSTEM →
Greek. Made in Thessaloniki.
Frequently asked questions
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