This photo features a Spilling Piston Steam powered engine. The Spilling engine is a durable, proven alternative to steam or gas turbines- best known for its durability and performance in remote applications. These engines are utilized to generate electricity from biomass when paired with solid fuel steam boiler technology. To find out more
about the Spilling Engine, or biomass energy technology

For more information see http://www.spilling.info/products/steam-engines.html