TONAWANDA, NY — General Motors will invest $6.7 million in its engine plant here to upgrade production systems.

ELBRIDGE, NY — Contract manufacturer Tessy Plastics announced plans to add 100,000 square feet of warehouse space to its 190,000-square-foot manufacturing plant here for additional storage of medical products.

ILION, NY—Remington Arms was cited for more than two dozen violations of workplace safety and health standards—and fined more than $200,000 as a result—after an employee’s fingertip was amputated while working at the company’s assembly plant here.

CLIFTON PARK, NY—Fuel-cell manufacturer Plug Power recently cut the ribbon on its new production facility here. The company says it is anticipating increased demand for its high-tech products, which combine hydrogen and oxygen to produce electricity, with water and heat as the byproducts.

BUFFALO, NY—SolarCity’s sprawling assembly plant here is nearing completion and will soon begin producing some of the most efficient solar panels available commercially. Capable of making 10,000 solar panels a day, or 1 gigawatt of solar capacity a year, it will be the largest solar manufacturing plant in North America and one of the biggest in the world.

BUFFALO, NY—SolarCity has pledged to hire another 1,500 workers in the next decade at its solar panel manufacturing plant under construction here. That would be on top of the 3,000 the company hopes to hire when the plant begins production.