The diesel generators have fallen silent. No longer is the idyllic island of St. Eustatius tarnished by their drone and black diesel soot. And gone, too, is the need to buy expensive diesel fuel. In November 2017, this Caribbean island – a “special municipality” of the Netherlands – became that little bit more special thanks to the launch of a diesel-free daytime electricity supply.
Krystalline Salt’s factory is supplied by 25% of solar energy in grid parallel and in diesel mode. Following their ambitious energy management, the company took solar to a professional scale and safes expenditures for electricity supply.
SMA Sunbelt Energy GmbH as EPC in cooperation with its local construction partner Harmonic Systems build and commissioned the project within 5,5 months.
The setting: An island with 4,000 inhabitants and three diesel generators to supply power. The mission: Reduce fossil fuel usage and establish a grid stabilizing energy supply based on renewable energies. The challenge: Supply a smart combination of a 2 MWp PV farm and diesel generators; introduce the largest lithium battery storage system in the Caribbean; use the latest SMA products; and develop a new monitoring platform—within the space of just nine months.
When you think of Fiji, you first think of vacation, wonderful beaches with palms and crystal clear water with perfect spots for scuba diving. We also thought of energy: Energy that could help build a more ecological electrical power supply. The existing power supply on the three separate islands of Kadavu, Lakeda and Rotuma around the Fijian mainland had been fully based on diesel generators. Now the SMA Fuel Save Controller 2.0 is helping to integrate solar energy into the power grid. That guarantees more sustainability on these islands.
Karen Roses Ltd is a family owned business operating six flower farms in Kenya. One of its farms, situated at Eldama Ravine in the Rift Valley, is at an altitude of 2000 meters, is now equipped with a 150 kWp PV system. During the day, the energy demand of the facility is almost entirely fulfilled by the solar power generated. When the national grid is working, the PV plant operates in parallel to significantly reduce the cost of imported energy.
The Pando region in the north of Bolivia is extremely remote and sparsely populated. Since a utility grid here is out of the question, the region is supplied with power from a diesel power plant. Until December 2014, just 65 percent of the population had access to electricity. Thanks to a photovoltaic diesel hybrid power plant located in Pando’s capital, Cobija, the region is now on course to having its own sustainable energy supply by eliminating its dependency on fossil fuels and increasing its electrification rate to 80 percent. By expanding its power plant to include solar energy, the local electric utility company will save around 1.9 million liters of diesel fuel each year.
In addition to apes and dolphins, since June you will now find something at the Athens Zoo you would not normally expect to see there—a diesel generator combined with a PV system. This PV diesel hybrid system is a joint project whose goal is to create a virtual stand-alone grid. For the research group smartRUE at the Technical University of Athens, this stand-alone grid serves as a demo and training project while also helping the zoo to reduce expensive energy costs.
The first PV diesel project in the megawatts was commissioned in Thabazimbi in November 2012 and, as a future development engineer, I was granted the opportunity of being present for the commissioning of this flagship project.