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Calcimator

Demand Response Savings Calculator

Calculate revenue and savings from demand response load curtailment.

Inputs

kW
kW
$/kW-yr
$/kWh
hrs
$/kW

Results

Total Annual Benefit

$42,800.00

≈ 4 years of state college

Capacity Revenue$10,000.00
Energy Revenue$4,000.00
Demand Charge Savings$28,800.00
Curtailment %20%
Total Curtailment Hours40
How to Use This Calculator
  1. Enter Peak Demand, Curtailable Load, and Capacity Payment.
  2. Set Energy Payment, Events per Year, and Event Duration.
  3. Adjust Demand Charge Rate as needed.
  4. Review the Total Annual Benefit ($) result.
  5. Use Capacity Revenue ($) and Energy Revenue ($) to inform your decision.

How the result changes with Curtailable Load

Curtailable LoadTotal Annual Benefit
5,009$1,071,926.00
17,507$3,746,498.00
32,504$6,955,856.00
45,001$9,630,214.00

What each input means

Peak Demand
Your facility's peak demand.
Curtailable Load
Load you can curtail during demand response events.
Capacity Payment
Annual capacity payment for enrolled demand response.
Energy Payment
Payment per kWh curtailed during events.
Events per Year
Expected number of demand response events per year.
Event Duration
Average duration of each demand response event.
Demand Charge Rate
Monthly demand charge you can reduce by curtailing.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Peak Demand = 1000, Curtailable Load = 200, Capacity Payment = 50, Energy Payment = 0.5 = 7 input(s) provided
  2. Calculate Total Annual Benefit
    Total Annual Benefit
    42800 = $42,800
  3. Calculate Capacity Revenue
    Capacity Revenue
    10000 = $10,000
  4. Calculate Energy Revenue
    Energy Revenue
    4000 = $4,000

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