September 30 is the deadline to apply for green energy grants and loans to retrofit buildings in the downtown historic district. This money is available thanks to a $5 million “stimulus fund” (Recovery Act) federal grant announced by US Rep. Tsongas, Sen. Kerry, and City leaders a few months ago. Read about the program and application guidelines here. Forms are available on the City’s website. If you don’t use the web, call the City Manager’s Office at 978-970-4000.