Modifier Stacking

Order

Modifier

Reasoning

1

HVAC Heat Pump

The electrification modifier that has the most impact on the customer's load. It seems prudent to do this first before additional load is added to the customer

Electrification modifiers are multiplicative i.e. appliance impact is multiplied against the customer’s interval data. This has the potential to create a mini-feedback loop as Modifier 2 impact will be multiplied against that of the customer’s interval data + Modifier 1 impact.

2

Heat Pump Water Heater

The electrification modifier that has the 2nd most impact on a customer's load. 

3

Electric Dryer

The electrification modifier that has the 3rd most impact on a customer's load. 

4

Electric Range

The electrification modifier that has the 4th most impact on a customer's load. 

5

Electric Vehicle

EV is independent of the customer’s load as it creates a charging load that is added so it can go after the electrification modifiers but it’s important that it goes before solar and battery.

6

Solar

Solar should be sized to offset the customer’s consumption. Solar should be executed as the penultimate modifier to account for all potential changes to consumption.

7

Battery Storage

The Battery modifier is intended to optimize the customer’s consumption and generation to reduce the bill and manage power outages. It should always be last to ensure it is sized for both the customer’s future consumption and generation load shape.