Case Studies

  • AES Energy Storage Angamos Battery Energy Storage System (BESS)

    In 2011, AES Gener, in cooperation with its subsidiary Empresa Eléctrica Angamos, completed construction on a 544MW thermal power plant in the town of Mejillones in Northern Chile. The plant provides electricity to this important mining region.

  • Delivering 100% Commercial Reliability: AES Los Andes Battery Energy Storage System (BESS)

    AES Gener’s Los Andes substation is located in the Atacama Desert in Northern Chile and provides electricity to this important mining region. To ensure grid reliability against transmission or generation losses, power generators in the region each hold back capacity to meet system response for primary and secondary reserves. If an alternate solution could qualify to meet the critical grid reliability needs, then AES would be able to supply more needed energy generation to this important region of Chile.

  • Earning Revenue via Multiple Value Streams: Kaheawa Windfarm Dynamic Power Resource (DPR®) Energy Storage

    First Wind built a second phase to the Kaheawa Wind Project (KWP II) adding an incremental 21 MW of wind generation on the island of Maui on the Maui Electric Company’s 69 kV electric system. In order to mitigate the effects of wind volatility on an island grid, Xtreme Power designed a 10 MW Dynamic Power Resource® (DPR) to integrate with the 21 MW KWP II facility operating on a 80-200 MW grid. Wind development in high penetrations requires grid flexibility.

  • Frequency Regulation Services and a Firm Wind Product: AES Energy Storage Laurel Mountain Battery Energy Storage (BESS)

    AES Laurel Mountain is a 98MW wind power generation plant located in Belington, WV that is built to supply more than 260,000MWh of renewable energy annually to the PJM Interconnection. However, since wind generation is variable, wind power plants are unable to supply capacity services to assist with grid reliability or earn additional revenue associated with those services like most other power plants.

  • Hawaii’s Big Island integrates renewable energy with Saft’s Li-ion technology

    Saft’s two lithium-ion (Li-ion) Intensium® Max 20E containerized energy storage systems (ESS) provide Hawaii Electric Light Company (HELCO) with the technology required for the Big Island to integrate an even greater amount of renewable resources with its grid. While the state of Hawaii is well placed to generate energy from natural sources, it historically has a high dependence on oil. It is targeting 40% of its energy to come from renewables by 2030, which it will achieve partly through intermittent sources such as solar and wind power.

  • Long-Duration Energy Storage on a Grid Scale: Highview Power Storage LAES

    Liquid Air Energy Storage (LAES) is sometimes referred to as Cryogenic Energy Storage (CES). The word “cryogenic” refers to a gas in a liquid state at very low temperatures. The working fluid is Liquefied Air or Liquid Nitrogen (78% of air). The systems share similar performance characteristics to pumped hydro and can harness industrial low-grade waste heat/waste cold from co-located processes, converting it to power. Size range extends from around 5MW/15MWh to >50MW/250MWh and with capacity and energy being de-coupled, the systems are very well suited to long duration applications.

  • Peak Shaving and Demand Charge Avoidance: Prudent Energy Vanadium Redox Battery Energy Storage System (VRB-ESS®)

    Gills Onions operates one of the largest, most innovative and sustainable fresh-cut onion processing plants in the world. Its Advanced Energy Recovery System (AERS) that went into operation in July 2009 converts all of the plant’s daily onion waste into a combination of renewable energy and cattle feed. The result is increased energy independence, elimination of a significant waste stream, reduced operational costs and a smaller carbon footprint.

  • Peak Shaving to Reduce Energy Costs: EaglePicher Power Pyramid™ Hybrid Battery

    The Power Pyramid ™ system provides seamless power to the load via multiple input sources. In this demonstration project, the input sources will include 10 kW wind turbine, 20 kW solar comprised of multiple solar panels and multi-tier battery storage comprised of multiple electro-chemistries.

  • S&C Electric Company PureWave® Storage Management System Helps Reduce the NOx Emissions on Catalina Island, California

    Catalina Island—a historic landmark 22 miles off the coast of Long Beach, California—has a population of approximately 3,700 people. There’s no utility tie to the mainland. The island microgrid has a peak load of 5 MW which is served by Southern California Edison (SCE) through a combination of six diesel generators and 1.4 MW of micro-turbines. The diesel generators were deemed to be high emitters of mono-nitrogen oxide (NOx) gases by the South Coast Air Quality Management District. To mitigate these smog causing emissions, SCE installed emissions control systems which convert the gases into water. But the catalyst for this conversion is only effective at a specific temperature range, which is reached when the generators are run above 80% load. SCE needed a solution that would allow the generators to run more efficiently, and thus reduce NOx emissions on the island.

  • S&C Electric Company: Canada’s First Utility-Scale Energy Storage System Islands Remote Town During Outages

    S&C’s solution includes a 1-MW NGK sodium-sulfur (NaS) battery and an S&C PureWave® Storage Management System (SMS), which controls battery charging and discharging. It also includes S&C’s IntelliRupter® PulseCloser for fault detection, S&C’s System VI™ Switchgear, and S&C’s IntelliTeam® SG Automatic Restoration System for peak shaving and transitions between the battery and grid. S&C SpeedNet™ Radios provide fast, two-way communication to help speed restoration.