Maximum Demand Calculation May 2026
Always allow for a 10–20% margin for future expansion (e.g., adding an EV charger or solar battery).
Add up the results from each category to find the . 4. The Formula maximum demand calculation
Practical Example: A Small Residential Unit Lighting: 2,000W (Diversity 66%) = 1,320W Sockets: 10,000W (Diversity 40%) = 4,000W Always allow for a 10–20% margin for future expansion (e
Utilities often charge "demand charges." If you overestimate, you pay for capacity you don't use; underestimate, and you face hefty penalties or frequent outages. 000W (Diversity 66%) = 1
