Similar results are expected at new solar arrays planned for Toyota facilities in Missouri and West Virginia. Altogether, the projects will generate 4.95 megawatts of energy and reduce CO2 emissions at the plants by 4,304 metric tons each year.

Toyota is always seeking ways to reduce its environmental footprint, from conserving energy to cutting water usage and recycling materials, said Kevin Bell, Toyota Motor North America Energy Manager.

“We are committed to setting an example of sustainability to show how a company can significantly reduce the environmental impact of its operations,” he said.

Toyota had previously installed solar arrays at plants in Texas and Mississippi as part of its global Environmental Challenge 2050 to eliminate all carbon emissions from manufacturing by mid-century.

The company is one of the top 20 corporate users of installed onsite solar capacity in the U.S., according to the Solar Energy Industries Association.

The Huntsville engine plant has been a critical part of Toyota’s North American operations since production began there in 2003. It is one of the company’s largest engine plants worldwide.

The facility produces about 2,500 engines per day that power one-third of the Toyota vehicles built in North America.

It has expanded five times, with a current total investment of $1.2 billion and 1,400-member workforce.

The latest expansion, a $288 million project announced last year, is boosting annual production capacity to 900,000 engines per year and adding 450 jobs.

Toyota also is partnering with Mazda to build a $1.6 billion automotive assembly plant in Huntsville.