Battery energy storage systems (BESS) are advanced energy storage solutions that store electrical energy for later use. They can be recharged when there is an excess supply of electricity, often at lower costs, or when intermittent renewable energy sources, such as solar or wind, are generating power. BESS can then discharge the stored energy to provide a dedicated power supply, support microgrids or supplement the general grid during periods of high demand or when electricity prices are elevated.

Established by D.W. (David) Onan in 1920, Onan has been a leader and pioneer in power generation equipment for more than 80 years and engines for 50 years. A lot of years have passed and a lot has changed since the first Onan generator sets entered the market - the products, technology, marketplace and of course, the company.

In short, the Komatsu S4D102E-1 engine and Cummins 4BT3.9 engine use the same basic engine components (cylinder head, valves, valve inserts, block, crankshaft, con-rods).

​We can distinguish the diesel engines by application. We mean that a diesel engine that is placed in a ship has a different specification than a diesel engine that is used as a generator set, pump set, power pack or another industrial application.