Energy storage developments |
Santa Ana, a milestone for Calpine storage plans
Calpine and GE Renewable Energy have announced completion of the Santa Ana Storage Project (SASP) in Southern California. The project contains a 20 MW/80 MWh (4hour) standalone battery energy storage
system using GE’s Reservoir energy storage technology.
The system, now in commercial operation, is supported by a 20-year Resource Adequacy Power Purchase Agreement (PPA).
Above: Santa Ana Storage Project
This grid-connected battery energy storage system is said to “represent a major step forward in Calpine’s plans to grow the company’s energy storage footprint.” The SASP facility itself will be capable of considerable expansion in future phases. Mike Bowman, renewable hybrids CTO, GE Renewable Energy, said: “The energy storage system provides targeted local capacity to enhance grid reliability during peak periods. And, as fast-acting stabilisation devices, the battery energy storage systems can charge and discharge rapidly to regulate frequency and contribute to grid stability, helping to balance and facilitate the ever- growing penetration of variable renewable energy. These assets will assist with achieving California’s state targets of 60% renewable electricity by 2030 & 100% by 2045.”
US storage market continues to grow
According to Wood Mackenzie (a Verisk business) and the US Energy Storage Association’s latest US Energy Storage Monitor report, 345 MW of new energy storage systems were brought online in the USA in second quarter of 2021. This is an increase of 162% over the same quarter in 2020, making Q2 2021 the second- largest quarter on record by MW for US energy storage additions.
Market momentum continues to build, as an unprecedented volume of storage will come online in in the second half of the year, with Wood Mackenzie expecting that storage projects representing over US$5 billion of investment will come online in 2021 alone.
Despite positive market momentum in the USA, the residential battery storage market dipped slightly, the first drop for the segment in nine quarters (since Q4 2018). Equipment constraints, including an ongoing Tesla Powerwall shortage, is hampering the segment’s growth despite the proliferation of new residential storage players.
The non-residential segment, which consists of onsite storage and community-scale storage, saw quarter-on-quarter deployments rise by 31%,
driven by the growth of the community storage market in Massachusetts. The front-of-the-meter (FTM) market deployed 218 MW/729 MWh in Q2 2021, with California, Texas and Arizona leading the segment. California continued to lead the front-of-the-meter segment in Q2, with Arevon/ Capital Dynamics’s 100 MW/400 MWh Saticoy Energy Storage peaker plant replacement in Ventura County contributing most of the MW for the quarter. Solar-plus-storage projects in Texas and Arizona also bolstered Q2 front-of- the meter capacity.
“The United States remains on course for a record setting year, further demonstrating battery storage’s growing acceptance within the power market and underlining its importance to the energy transition,” said Vanessa Witte, senior energy storage analyst with Wood Mackenzie. “Energy storage deployment achieves decarbonisation and resilience goals simultaneously,” said Jason Burwen, US Energy Storage Association Interim CEO.
“Storage is increasingly necessary to enable the accelerated commissioning of wind and solar power—with the US Department of Energy’s just-
released Solar Futures Study projecting as much as 400 GW needed by 2035.
“Storage also assures that power delivery remains resilient to increasingly frequent and intensive weather disruptions, like the heat waves and hurricanes seen in the US this past summer. “While the market for energy storage in the US has seen tremendous growth this year, public policy has yet to support the pace of deployment needed to meet decarbonisation and resilience goals.
“An investment tax credit, which catapulted industries like solar and wind, can do the same for the energy storage industry—with the added benefit of steering more supply chain investment decisions onshore.”
Policy support continued to build in the second quarter, with several new state incentives introduced for residential and non-residential storage.
The industry also still awaits the outcome of budget reconciliation, expected this winter, which could include a solar investment tax credit (ITC) extension and/or standalone storage ITC. A positive outcome would upgrade the energy forecast across all segments.
Siemens LDA to build “world-leading” 2-pole motor
Siemens LDA (Large Drives Applications) says it has received an order from a Chinese customer to deliver a special machine with dual shaft extensions for an energy storage project. It can be used as a motor, with a power of 105 MW, and as a generator rated
at 129 MVA. The motor will have an efficiency of beyond 98% and “will be a world-leading 2-pole electric motor”, according to Siemens. The contract also includes the delivery of a 40 MW Sinamics GL150 starting frequency converter. This load commutated inverter
32 | September 2021 |
www.modernpowersystems.com
(LCI) is designed for single-motor applications with variable and constant torque characteristics. As a result of low switching losses and the low loss thyristor technology employed, the efficiency of the LCI is around 99%
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