DEVENS — It may not be easy being green, it sure can pay well.

According to its year-end report filed with the Securities and Exchange Commission, Marlboro-based Evergreen Solar provided its CEO with a nearly half-million dollar bonus for 2009.

The $479,991 windfall Richard Feldt received in February for his 2009 performance comes atop his $527,885 salary. His 2009 compensation package, including stock awards, totals $1,792,175. Feldt’s bonus was tied to operational, and not profit, targets, according to the corporation’s March 9 SEC filing.

In return for the 11 percent bump in compensation over 2008, Feldt was credited with reaching “100 percent” of targeted goals under the Management Incentive Plan. Those target points included increasing Devens’ throughout measured in net cash, Devens output measured in watts, and the cost per watt, including containment of “material, labor, overhead and capital costs necessary to produce the product.” Feldt was credited with raising capital and finalizing a subcontract arrangement with Jiawei Solar in Wuhan, China to assemble solar panels overseas. He also was rewarded for achieving key manufacturing operating metrics and managing matters involving Sovello, Evergreen’s German-based partner. Sovello is facing bankruptcy after defaulting on repayment of a European Union grant. Evergreen wrote off $41 million worth of Evergreen’s remaining investment in Sovello.

Second-in-command Michael El-Hillow, Evergreen’s chief financial officer, chief operations officer and corporate secretary, received a $253,500 bonus atop his $352,300 salary. His total 2009 compensation package was $970,862. Last year, the baton on the ongoing Devens noise situation was passed to El-Hillow.

El-Hillow was credited with reaching 75 percent of his annual objectives, including meeting key goals as CFO, raising capital and his co-involvement in the China contract. El-Hillow was also given the role of “managing the Devens noise problem” according to the SEC report.

That noise problem is nearing a full year before the Devens Enterprise Commission with regard to high- and low-frequency sounds emanating from the Barnum Road plant, traveling over the town line and into Harvard homes and properties. The matter will be back before the DEC on April 8.

The company, the Enterprise Commission and the neighbors have all retained sound and legal experts in the ongoing battle over whether or not the company is compliant with Devens’ industrial noise standards. Also in the works is deciding the degree of any adjustment to Evergreen’s maximum audible and vibratory noise standards and how to monitor compliance in the future.

The Evergreen ended last year with a $98 million operating loss. While revenues tripled for the company, increased solar panel competition and resulting falling prices has clouded the forecast.

Evergreen Solar ramped up its Devens manufacturing operations in January 2009, yet last May the company inked a deal with Jiawei Solar to assemble solar panels overseas in a move that’s expected to cost 150 to 200 Bay State jobs in the coming year. Evergreen has approximately 700 full-time and 250 temporary employees between Devens and Marlboro.

The company’s move to China provoked statewide uproar last year when it was announced. The state has invested $58 million in the company’s Devens operations. In the face of challenges from both the economy and Harvard residential neighbors, MassDevelopment proceeded to lend the company an additional $5 million last fall. The Boston Globe has cited sources as saying the loan deal hasn’t yet closed.