Saft supplied an energy storage system, including power converter and control system, which is being fully integrated into the CEC microgrid. • Cordova Electricity Cooperative can now make full use of run-of-river hydro capacity and postpone the need to switch on diesel gensets.
Paris, June 11, 2019 - Saft has installed an energy storage system (ESS) in the Alaskan city of Cordova to enable the community to make the most of hydropower generation and meet a seasonal step change in demand as the local salmon processing industry starts up in early summer.
Delivered in April 2019, the ESS will minimize consumption of costly imported fuel and enhance the community's self-reliance.
However, CEC also wanted an installation that was proven to work effectively in the harsh and unforgiving Alaskan climate. The operator turned to Saft to deliver the turnkey solution, including an ESS rated at 1 MW with 1 MWh energy storage capacity, integrated with an ABB power converter and control system.
Cordova is located at the mouth of the salmon-rich Copper River and has an extensive fish processing industry, which places extra load on CEC over the summer months. Before implementing the ESS, CEC had to deflect around 500 kW of hydro power to use as capacity to maintain frequency, in a similar way to spinning reserve in a conventional grid. In addition, as fish processors ramp up production in the spring, CEC had to operate a diesel genset at its minimum output of 400 kW to enable CEC to meet spikes in demand. As a result, the operator was losing almost 1 MW of renewable power capacity.
By using the ESS to provide frequency response and meet peak demand, CEC can make full use of its hydropower and postpone the need to use diesel generation.
At the ribbon cutting event on June 7, 2019 to celebrate the energization of the ESS, Clay Koplin, CEO of CEC said: "Saft provided a packaged solution based on the same technology that they have supplied to another community in Alaska - and this gave us confidence that it would deliver long-term value for our community. The installation will enable us to be more resilient and less reliant on fuel deliveries from the outside world. It is also a logical step in our proposed journey to meet 100 percent of our needs with local hydropower."
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