Easy set-up of off-grid and hybrid systems

Multicluster Box for Sunny Island

The Scottish Isle of Eigg is still not connected to the power distribution grid located on the mainland 16 kilometers away. The approximately 100 inhabitants have been operating their own stand-alone grid since 2008. They successfully converted their power supply, stepping away from diesel and now generate power using virtually 100% renewable energy sources. The SMA hybrid off-grid system equipped with an installed renewable power generation capacity of 166 kilowatts integrates solar, wind power, hydropower and a storage battery. If this is not sufficient, two diesel generators are used as a backup. This provides sustainable and economical electrical power around the clock. Energy costs have dropped more than 60 percent since the conversion.

The SMA multicluster technology ensures that the residents on Eigg Isle have a reliable, renewable, grid-quality power supply. Here, the Multicluster Box is the central link. The integrated AC distribution board makes it very easy to connect the electric generator, PV plant and wind turbine system. The high modularity with 4 clusters each with 3 Sunny Island devices makes the stand-alone grid particularly failsafe.

Location
Outer Hebrides, Scotland

Commissioning
2008


Nominal power
110 kW hybrid power
24 kW wind power
32 kWp PV power


Inverters
12 x Sunny Island 5048
4 x Windy Boys 6000
3 x Sunny Boys 3000


CO2-reduction
47 % (from 8.4 to 4.45 t/y)


Planning and realisation
Scottish Hydro Contracting Ltd., Wind and Sun

Location

  • Eigg Island, Schottische Hebriden

Planning and Realisation

  • Scottish Hydro Contracting Ltd., Wind and Sun

Operator

  • Eigg Electric Ltd.

Renewable Energy Power

  • 110 kW Hybridpower, 24 kW Wind Power, 32 kWp PV Power

Battery Size

  • 212 kWh

Generator

  • 2x 13488 kW

CO2-Reduction

  • 47 % (from 8.4 to 4.45 t/y)

Inverters

  • 12 x Sunny Island 5048
  • 4 x Windy Boys 6000
  • 3 x Sunny Boys 3000

Commissioning

  • 2008

Contact

SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal
Germany

Telefon: +49 561 95 22-4000
Telefax: +49 561 95 22-4040

Sales@SMA.de