Ricko1980
Member
- Location
- San Francisco
- Occupation
- Electrical Contractor
Hi Folks,
We've installed plenty of services, but not yet a battery for residential backup... Now a client wants a battery installed on an existing service, and I'm trying to figure out how to include the battery load in the service calculation, especially for existing services. So far, 220.82 gives the best result, not including the battery, since I wasn't sure how to put it in.
Do we just include the battery's charging capability in the general load (i.e., 10 kVA plus 40 percent of the remainder of the loads)? Meaning that the battery charging is effectively counted at 40% for the service wires? This seems to be the way to go but I wanted to make sure I wasn't missing some section in another chapter.
We've installed plenty of services, but not yet a battery for residential backup... Now a client wants a battery installed on an existing service, and I'm trying to figure out how to include the battery load in the service calculation, especially for existing services. So far, 220.82 gives the best result, not including the battery, since I wasn't sure how to put it in.
Do we just include the battery's charging capability in the general load (i.e., 10 kVA plus 40 percent of the remainder of the loads)? Meaning that the battery charging is effectively counted at 40% for the service wires? This seems to be the way to go but I wanted to make sure I wasn't missing some section in another chapter.