1. Electricity Provider Programs
California Heat Pump Water Heater Collaborative workshop
Pacific Energy Center, San Francisco, October 22nd 2018
Owen Howlett
(916)

2. CA Energy Provider HPWH Program Goals
14M households in CA, so eventual statewide need is close to 1M units/year for complete success.
SCE has grasped the magnitude of the challenge—”Anticipate 1M HPWH in service by 2030”.
Total CA energy provider program goals by year, excluding SCE, SDG&E, LADWP:
Year
2019
2020
2021
2022
Total Program Goals
2,245
3190
3,620
5,000

3. CA Energy Provider HPWH Load Shifting Goals
Behind the Meter Storage (leg. mandate or board target for POUs)
One 50 gallon HPWH is equivalent to approx. 1kWh of storage
PG&E 6,600 units
SMUD 5,500 units
SCE approx. 5,000 ($1M budget )
Sonoma Clean Power 1,800 units

4. Load Shifting Opportunities
Vertically integrated utilities can pass generation savings on to customers by switching on storage HPWHs at times of overgeneration
Storage increases GHG savings and utilization of renewables
Using HPWH as storage opens up a new kind of ongoing relationship with the customer
Storage maximizes societal cost, minimizes revenue loss
Optimized to TOD rate
Dynamic pricing
Customer savings (relative to uncontrolled HPWH)
$38
$38+X
Utility avoided cost (societal savings) $2
$15

5. Prices Paid by our Customers

6. Utility Issues to Address
How to reduce prices quoted to customers (Volume effect? Direct install? Trade allies?)
How to reduce complexity and lead time
How to integrate HPWH into other programs, including res retrofits and EV, to maximize uptake and to defray panel changeout cost
How to pass dynamic pricing to HPWHs, in practice
How to increase customer desire / perceived need for this technology, and other electrification.