Huawei
SUN2000 inverters
Single-phase and three-phase home inverters, ready for a LUNA2000 battery.
- App
- FusionSolar
Home / Solar PV
Solar PV systemsSolar for homes and businesses
On a flat roof, a pitched roof, the ground or a balcony, with or without a battery. We design the system around your consumption and choose the right connection method.
How it works
From the sun to your fuse box
Types
Where solar panels can go
Home solar on flat and pitched roofs
Self-generation systems for houses and blocks of flats, usually with net billing.
Find out more →Balcony
Small systems up to 800 W for flats, with or without a battery.
See the solution →Commercial solar on rooftops and land
For businesses, hotels, workshops and farms.
Find out more →Home
Flat and pitched roofs
Households can use a special net billing scheme for systems up to 10.8 kW.
On a flat roof we fit the panels on frames at the right tilt. On a tiled roof, pergola or pitched roof we mount them parallel to the surface.
Often the best investment is solar combined with a heat pump or a battery, so daytime energy covers heating, cooling and evening use.
- GoodWe, Huawei or Deye inverters, depending on the study.
- The option to add a battery now or later with a hybrid inverter.
- Optimisers where there is shading.
- Monitoring of generation and consumption from the app.
Sizing example
| Annual household consumption | 6,000 – 8,000 kWh |
| Recommended system | ≈ 5 – 6 kWp (12–14 panels) |
| Space | ≈ 28 – 35 m² |
| Annual output of 6 kWp in Athens | ≈ 9,000 kWh |
| Self-consumption without / with battery | ≈ 35% / 60% |
In Attica, 1 kWp facing south produces about 1,400–1,600 kWh a year.
Inverters
The “brain” of the system
GoodWe
ET PLUS+ hybrid
A 5–10 kW three-phase hybrid inverter for homes with a high-voltage battery.
- Power
- 5 – 10 kW
- App
- SEMS+
Deye
Three-phase hybrid
An inverter for low-voltage batteries, flexible enough for homes, small businesses and holiday homes.
- Power
- 3 – 12 kW
Commercial
Rooftop and ground-mounted, any type
We design systems for industrial roofs, the roofs of offices, shops and hotels, and ground-mounted systems on the business's own land.
Depending on your consumption profile and the local grid, we recommend net billing, zero feed-in or virtual net billing with simultaneous matching.
- Load analysis in 15-minute intervals from your meter data.
- Combined with commercial heat pumps and fleet chargers.
- Storage for businesses that run in the evening or around the clock.
Net billing
How your system connects
Net billing
Simultaneous net billingthe standard choice for new systems
Whatever you use while it's being generated, you don't pay for. The surplus goes to the grid and is credited in euros on your bill.
Zero feed-in
No export to the gridall the output stays with you
The inverter keeps export to the grid at zero. The output is used or stored on site. A solution for businesses with a daytime load and for areas where the grid is saturated.
Virtual net billing
Virtual net billing with simultaneous matchingsystem at another location
The solar system is installed on a different property from the supply it offsets, e.g. on a plot of land or another of the business's buildings, provided the conditions are met.
FAQ
What people ask us most
How many panels will fit on my roof?
Each 450 W panel takes up about 2 m², and on a flat roof the rows need space between them so they don't shade each other. We measure this during the site survey.
What about shading?
A single shadow can reduce the output of a whole string. The right layout or optimisers keep the problem to a minimum.
How long do panels last?
Panels usually come with a 25–30 year performance warranty. Inverters come with 5–10 years, and this can be extended.
Do they need maintenance?
Panel cleaning and an electrical check once a year. We track performance remotely and are alerted to any problem.
One study for power, heating and cooling
Tell us about your property and your consumption. One of our engineers will call you to arrange a site survey and a price, with no obligation.