WA_Sparky
Electrical Engineer
- Location
- Vancouver, WA, Clark
- Occupation
- Electrical Engineer
Often I'm asked to provide preliminary estimated service load calculations. From project experience I can usually get within 10-15% or so of final load.
I have a project that is a 4 story building mixed use project. Floors 2-4 will be condos. Floor 1 will be 10 future retail tenants, 1 will be restaurant (400A), the rest are unknown and requesting 200A panels. These spaces vary between 500-800sf. I cannot imagine a 500sf space using 80% of a 200A panel and anticipate being conservative will launch my estimated size pretty significantly.
Can anyone confirm the estimated sizes below are still decent today? (i found another post on topic from 2006).
Basic Electrical Mechanical (1,500 to 2,000 Watts/Ton)
BldgType Watts/SF SF/Ton
Data Center 50, As Needed
Detention Facility 6, 300
Educational 6, 350
Hospital 20, 200
Hotel 6, 350
Medical Building 7, 300
Office Building 7, 300
Public Building 6, 300
High Rise Residential 4, 400
Retail 4, 300
Warehouse 2, 500
Other comments mention 15 Watts/SF in office spaces
Thanks in advance!
I have a project that is a 4 story building mixed use project. Floors 2-4 will be condos. Floor 1 will be 10 future retail tenants, 1 will be restaurant (400A), the rest are unknown and requesting 200A panels. These spaces vary between 500-800sf. I cannot imagine a 500sf space using 80% of a 200A panel and anticipate being conservative will launch my estimated size pretty significantly.
Can anyone confirm the estimated sizes below are still decent today? (i found another post on topic from 2006).
Watts per square feet in buildings
Does anybody know where to find tables with total electrical watts per square feet for different kind of buildings? I am using 15 W/sq.ft for office buildings and 30 W/sq.ft. for restaurants. But what should I use for new hospital building or some other buildings?? Thanks, Mike
forums.mikeholt.com
Basic Electrical Mechanical (1,500 to 2,000 Watts/Ton)
BldgType Watts/SF SF/Ton
Data Center 50, As Needed
Detention Facility 6, 300
Educational 6, 350
Hospital 20, 200
Hotel 6, 350
Medical Building 7, 300
Office Building 7, 300
Public Building 6, 300
High Rise Residential 4, 400
Retail 4, 300
Warehouse 2, 500
Other comments mention 15 Watts/SF in office spaces
Thanks in advance!