The Harvard Street Neighborhood Health Center is back open today after being closed Monday due to a power outage caused by Tropical Storm Irene.

Power returned to the clinic at around 3 a.m. Tuesday morning, said chief operating officer Dimitry Petion.

The clinic had to turn away several patients yesterday. Those with immediate needs were referred to Boston Medical Center and some were rescheduled for appointments today.

“The community was adversely affected in that there were people who we were not able to see,” Petion said.