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Store, Save and Support Energy Storage for Customers Today and Tomorrow

Ted Ko

Director of Policy

ted.ko@stem.com

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Stem Overview

Year Founded: 2009

Headquarters: Millbrae, CA

Operations: CA, HI, NY, TX

Employees: 140+

Pipeline & Installed: 800+ sites, 180+ MWh

Project Finance Capacity: $500 MM

ANGELENO GROUP

High Caliber Global Investors Distinguished Honors & Awards

Stem’s Headquarters in Millbrae, California Stem operates the world’s smartest and

largest digitally-connected energy

storage network

SEPA Power Player 2017: Innovative Partner of the Year

Solution Components

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Small indoor

18 kW modules

(gym locker size)

Large outdoor

Scalable from 100 kW to 5+ MW

Medium indoor

132 kW modules

(server rack size) Energy Storage Systems

Modular options for all facility sizes and locations. Batteries from leading global manufacturers.

Athena™ Artificial Intelligence

Automatically controls when energy storage charges and discharges to optimize timing, maximize savings, and create virtual power plants.

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Customers find adoption easy

“We have seen significant energy savings at our building, more than initially anticipated. The process to install and implement was seamless.” – Operations Manager, LBA Realty “Stem helps me generate revenue by achieving a below budget cost for energy and putting money directly into our owner’s pocket at the end of the year.” –Chief Engineer, InterContinental Hotels “Stem provides easy savings with little risk.” – Store Operator, National Grocery Retailer “Stem has cutting edge technology that can be scaled to your particular needs.” - Kent Ramseyer, Energy Manager, Newport Mesa Unified School District

SELECT CUSTOMERS

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• Batteries aren’t being used 24x7 for

the building

• Utilities and grid operators like NE-

ISO call the VPP for energy and grid

services

• Artificial Intelligence software

selects storage systems with spare

energy

Networked Storage acts like “Virtual Power Plants”

Joining a Fleet (or Network)

Customers are compensated for supporting the grid while the software does the work

VPPs Support The Grid Today

• 500 grid calls since 2015

• Over 150 “real-time” (5-min) calls from

Jan – May 2017 alone

• Support for the grid during

unprecedented heatwaves on June 20

and August 28

• Customers enjoyed knowing they

helped California avoid blackouts

• No manual intervention

On August 28, 2017

Stem ”turned on” 14

VPPs (over 100

buildings) to support the

grid during a major

heatwave.

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Empowerment

w/o capital investment

”Storage as a service”

Reduce long-term rates

Help make the grid more efficient

Green Goals

On-site and statewide

renewable energy

Store, Save and Support

Customer considerations

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Advice from your peers

“It really works. Saves money and has a good ROI.” – Facilities Manager, Wyndham Worldwide “What are you waiting for?” –Chief Engineer, InterContinental Hotels ”Get it done.” –Owner, Menehune Water Co “Go for it!” -Financial Director, Pebblebrook Hotel Trust “Easy! Do it.” –Honolulu Academy of Arts “It’s a no-brainer.” –Owner, Interfaith Housing Assistance “Don’t wait, just do it!” –CFO, Soka University