The electricity generated by the gas turbine (and imported from NSTARwhen needed) is transmitted to the campus through an entirely new electrical distribution grid. This reworking was part of the cogeneration project and has been in development for several years.
MIT is connected to NSTAR through four umbilicals. This power passes through two current limiting reactors ( known as the "doghouses" and visible on the Albany Street side of the building) and onto the 13.8 kV bus. The CTG generator also connects to this bus.
In actuality, there are two busses, 13A and 13B. These buses are the main feeders for the campus electrical power. From this bus, the power is transformed to 2.4 kV for transmission to the campus. All of the switchgear is monitored by GE Power Leader meters and in continuously fed to the DCS and the PI system. The picture below shows a illustrative schematic of the system.
