By Jason Deign
Inverter maker SMA Solar Technology yesterday confirmed commissioning of a hybrid battery, PV and diesel system covering the electricity needs of a small Caribbean island.
The system will allow the 21km2, 3,500-population island of Sint Eustatius, in the Caribbean Netherlands, to cut its fossil-fuel consumption by 30%, equivalent to 800,000 litres of diesel and 2,200 tons of CO2 a year.
The hybrid system includes a 1.9MW solar plant, which can cover more than 23% of the island’s 13.5GWh annual electricity demand, plus 1MW of battery storage.
Diesel genset integration is through SMA’s Fuel Save Controller 2.0 software. SMA also supplied a Sunny Central Storage 1000 battery inverter and a Medium Voltage Power Station 1000.
This “enables a measured solar fraction of up to 88% during sunshine hours and supports the grid with stability functions such as frequency regulation, ramp-rate control for PV and optimisation of diesel genset operation,” SMA said.
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