1. SMUD - Whole Foods Energy Storage System
Stephen A. Kirin
May 4, 2017

2. Whole Foods Market – About the Company
High quality natural & organic grocery store
Strong environmental stewardship with a Green Mission Plan
Reduce, Reuse, Recycle approach
Alternative Energy planning
Wind
Purchased Renewable Energy Credits to offset 100% of electricity used in all stores.
Solar
As of stores and facilities use solar
Electric Vehicle
As of 2015 over 70 EV charging stations installed

3. Whole Foods Market
What Motivated Whole Foods to pursue and install a battery storage system?
Innovative technology and the possibility of energy savings, load shifting, and other grid services were the main motivating factors.
What was your experience through installation?
The installation was very straight forward, integration was seamless with next to zero impact to store operations.

4. Whole Foods Market -Site specific information
Arden store location is a leased property with NO ability or access to PV.
Interconnection guidelines required NO NEM
Target use cases / applications of Battery Storage System
Peak Load Shifting – Charge storage when energy costs are lowest and discharge storage when energy costs are highest.
Demand Charge Management – establish new lower maximum demand charge.

5. Stem Battery Storage System
Stem installed a 36kW/72kWH (2 hour) Lithium Ion battery
Stem manages the dispatch of the battery for Whole Foods to best meet use cases outlined previously
Battery installation did qualify for Self Generation Incentive Program – SGIP

6. SMUD
Purpose was to develop a behind the meter battery storage research project
SMUD incentive of 50% construction cost
Evaluation on system performance to be completed at the end of 2017

7. Performance
Customer cost per kW significantly lower in SMUD territory limiting savings in demand reduction
Optimized Peak load reduction of 9.7kW during summer and 18.7kW during winter resulting in a savings of only $904 over 14 months
Behind the meter storage deployments in SMUD territory remain NOT cost effective