Globally the market for off-grid hybrid diesel application exceeds 100GW (IRENA, 2017), representing $50B in asset sales across off-grid diesel markets.
Renewable capacity within the off-grid sector is the fastest growing generation category, representing over 4GW in 2016 (IRENA, 2017)
Variable speed diesel application offers this market a step change in both efficiency and performance, with the technology operational at a number of pilot sites including:
Pulau Ubin Micro-Grid, Singapore
The Energy Market Authority (EMA) is piloting a micro-grid test-bed at the jetty area of Pulau Ubin, an island north-east of Singapore. The test-bed assess the reliability of electricity supply within a micro-grid infrastructure using intermittent renewable energy sources such as solar photovoltaic (PV) technology. This challenge needs to be carefully managed to ensure reliability of supply to consumers, especially when solar forms an increasing part of Singapore’s overall energy mix in future. The micro-grid includes 30 participants from around the jetty area, including various businesses, telecommunications base stations, residential premises and government agencies.
Haa Alif Uligam Microgrid, Maldives
The Uligam micro-grid uses 67 wind turbines and photovoltaic solar panels to reduce the islands diesel consumption by 80%. The project also uses variable speed diesel generation to ensure the efficiency and response of the on-island diesel generation.
Ramada Eco Resort Micro Grid, Western Australia
The resort micro-grid is located in the remote north of Western Australia, consisting of 25 luxury villas and 30 safari glamping tents. The micro-grid uses a 540 kWh deep cycle battery in support of the 60kW of solar PV distributed across the facility. Four 50kVa variable speed diesel generators supply the facility.