Con Edison determines if the minimum load on the network is able to absorb the rated solar export potential
The minimum load on the area network’s transformers should be checked to ensure they can accommodate the PV system’s potential export at rated capacity. For example, even if the building service can accommodate the PV export, a lightly loaded network may present some technical complications for the area network grid if the local PV generation is greater than local transformer loading.
If the minimum load on the area network’s transformers is too low to absorb the PV system’s potential export at rated capacity, Con Edison will upgrade settings at local transformer network protectors. The cost of this will be dependent on size and configuration of the transformer, but should generally be lower than $15,000.
Alternatively, a reverse power relay could be installed to ensure the system does not export, or energy storage could be added to absorb excess power. Back to current process