Schnitzer Steel Industries, Inc. Selects PowerFlex – an EDF Renewables Company for Onsite Battery Energy Storage System

Meet the Interns: Summer 2021

No-Capital Cost Transaction Lowers Energy Cost and Mitigates Grid Strain

SAN DIEGO (Sept. 8, 2021)PowerFlex – an EDF Renewables Company was recently
selected by Schnitzer Steel Industries, Inc. to design, build, and operate a 1,600 kilowatt
(kW)/5,567 kilowatt-hour (kWh) Battery Energy Storage System (BESS) at its Oakland, California
facility to lower operational electricity costs by leveraging best practices in energy demand

The battery will charge during periods of the day when electricity demand on the grid is lowest
and renewable energy generating assets are actively powering the grid, thereby using the
cleanest available grid power supplied by East Bay Community Energy, the local Community
Choice Energy provider. And likewise, the BESS will discharge during periods of high onsite
consumption when less renewable energy is available on the grid. This shifting both eases the
strain on the grid and mitigates spikes in energy usage thereby lowering utility demand charges
for the Schnitzer facility.

The battery storage project will operate under a no-capital cost, shared savings agreement – a
performance-based contract whereby PowerFlex is only paid based on the actual utility bill
savings realized by Schnitzer as a result of the battery operation. Schnitzer has no fixed
payments and bears no performance risk on the operation of the system.

“This is an incredibly exciting project for us,” said Robert Ellsworth, Director of Sustainability,
Schnitzer Steel Industries, Inc. “It’s cutting edge, a technological innovation, and one of the first
of its kind for our industry, at one of our most dynamic locations. This project serves as a prime
example of our commitment to sustainability, not just from a global perspective, but more
importantly at a local, community level.”

Nick Chaset, Chief Executive Officer, East Bay Community Energy commented, “In order to
reduce emissions and lower electricity costs in California, we need more renewables online that
can be deployed on demand. East Bay Community Energy continues to work towards that goal
for our customers, having contracted 170+ MW of new battery storage projects to date.”

Chaset continued, “Schnitzer has been a valuable and like-minded customer and partner to EBCE
from our start, demonstrated through their voluntary selection of our 100% carbon-free option
for their electricity use in Oakland. This new 1,600 kW battery installation by PowerFlex further
demonstrates their continued commitment and vision, allowing them to reduce both cost and
emissions in a cutting-edge fashion. We hope this project will act as a model for other
businesses, far and near.”

Michael Robinson, Director of Microgrids and Strategic Market Development at PowerFlex
commented, “PowerFlex is proud to partner with Schnitzer to deliver a storage solution that
reduces energy costs while helping alleviate the strain on California’s grid. The BESS will
optimize grid-connected operations by allowing Schnitzer to draw from the stored energy
during the utility’s expensive evening on-peak period. Utility costs can further be reduced by
discharging the battery to mitigate spikes in usage thereby lowering demand charges. The BESS
solution is part of a portfolio of storage projects that PowerFlex is deploying with public and
private entities throughout California.”

The battery leverages EDF’s Energy Management System (EMS) using real-time data to allow for
improvements in energy consumption management along with advanced forecasting tools to
charge and discharge in a fashion which reduces the peak levels of consumption thereby
reducing overall peak demand kW and cost. Schnitzer’s Oakland facility processes and recycles
ferrous and nonferrous metals, creating both substantial and variable demand for electricity.

The project is expected to leverage Pacific Gas & Electric’s (PG&E) “Option-S” pilot program, a
rate tariff specifically designed to increase the adoption of energy storage and facilitate the shift
of solar energy to the evening period. This model aims to mitigate California’s “Duck Curve,” a
shape driven by mass adoption of solar energy and the resulting peak demand once the sun
begins to set.

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