Blue Belt
Reading a commercial bill line by line, load shape and demand-charge reduction, and how exports, self-consumption and tariffs change the math.
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Demand-aware commercial bill
Fictional tariff: 30,000 kWh at $0.14/kWh, 150 kW billed demand at $20/kW, $200 fixed. Solar offsets 12,000 purchased kWh and does not change billed demand. Find before/after costs and savings. Then consider an independently verified 15 kW demand reduction. Ignore taxes, exports and other riders for this exercise only.
Ready to grade for your Blue Belt?
Threshold 85% · every safety-critical item must be correct · self-paced · three attempts per day.
Belt certificates are issued by an administrator after the server verifies every requirement — lessons, exam, written task, lab.