California details:
NOI Rent: 575 x 8 x 12 x .65 = $35,880/year
Engine value:
laundry and general lites $1000/year
Grid electricity: $9,636 (.055 cents/kw-hr x 8760 hrs x 20 kw)
Tenant electricity net: $5760 (.15 net cent/kw-hr x 400 kw-hr/m x 12 m x 8)
Heating/cooling value: $7200 (8 x $75/unit-m x 12 m)
Total engine value in CA: 1,000 + 9636 + 5760 + 7200 = $23,596
NOI increase CA: (35,880 + 23,596)/35,880 = 1.65 or 65%.
