The report notes adding four hours of battery storage sized at half the nameplate capacity of a renewable power plant adds, on average, $10 per MWh of electricity market value across the service territories of the country's seven main independent ISOs. On the other hand, independently siting renewable power and battery storage can enable each to be located at the grid node where it offers most locational value, adding an estimated $12.5 per MWh of value.
In California, where 89 pct of large-scale solar waiting in network operator CAISO's interconnection queues is hybridised with storage. One of the factors is that interconnection to the grid is an expensive process which can take a lot of time, while available interconnection capacity is limited. Connecting generation and storage to the grid at the same point can therefore significantly lower the cost of a battery project. Another factor is that there is currently an investment tax credit (ITC) in the US which offers a reduction on the tax burden for building renewable energy projects and for batteries if paired with renewable energy. That can be worth as much as $10 per MWh.
The study notes that while the value of storage and renewables can go up if separate locations are chosen, the increase in value could be outweighed by the increase in costs. Different states also have different policies which could favor one or the other choice. The report also notes both separate and hybrid projects can be of benefit to the electricity system, the relative benefits vary from market to market and through a variety of other factors.
here is a growing appetite for hybrid resources from renewable developers, the study notes. In the West of the US, around 70 pct to 90 pct of proposed new solar plants at the end of 2020 would be paired with energy storage, with a national average of about 34 pct of solar and 6 pct of wind project proposals including co-located batteries. (Source: LBNL. Website PR, May, 2021) Contact: LBNL, Laurel Kellner, Media, 510-590-8034, LKellner@lbl.gov, www.lbl.gov
More Low-Carbon Energy News Lawrence Berkeley National Laboratory, Battery, Energy Stroeage, Renewables+Storage ,
Given the unique characteristics of energy storage resources compared to traditional energy generation or load resources, new market rules and changes to the ISO's existing energy storage optimization models may be needed to fully integrate these resources into the market, to leverage the flexibility of these resources to maintain grid reliability, and to maximize their use and effectiveness to achieve clean energy goals.
The electric powere stored in these batteries will go to the California Independent System Operator (CAISO). The California PUC seeks to add about 2,100 MW of energy storage to the grid by August 2021. . Currently, the peak demand for electricity is at 26,221 megawatts. (Source: EnerSmart, Website, NewsinPaphos, 14 Feb., 2021) Contact: EnerSmart, James beach, Partner, www.enersmartstorage.com; Eos Energy, www.eose.com
More Low-Carbon Energy News EnerSmart, Eos Energy, Battery Energy Storage,
This project is Wartsila's largest energy storage deployment tied to a renewable resource in the western U.S. To date the company
has deployed more than 70 energy storage systems worldwide.
(Source: Wartsila, PR, April, 2020) Contact: Wartsila, Risto Paldanius, Energy Storage Bus. Dev.,
More Low-Carbon Energy News Wartsila, Energy Storage,
"Customer-sited, or behind-the-meter (BTM), resources can provide multiple grid services at the distribution and transmission levels,1but numerous barriers have hindered the efforts of the CPUC and CAISO to enable BTM resources to provide these services. This report builds on several documents that industry stakeholders have produced for staff in the CPUC's Energy Division describing these barriers."
Barriers to Maximizing the Value of Behind-the-Meter Distributed Energy Resources White Paper HERE. (Source: California Solar & Storage Association, Feb., 2019) Contact: California Solar & Storage Association, https://calssa.org;
California Independent System Operator, www.caiso.com
More Low-Carbon Energy News California Independent System Operator ,
The pilot, which includes partnering with the California Independent System Operator (CAISO), is the first to connect a battery storage system in the US wholesale energy market.
The project follows an agreement signed between NEDO and the California state government's Office of Business and Economic Development to promote the use of energy storage in the state.
Californian utilities are required under State law AB 2514 to complete the installation of storage battery capacity up to a certain proportion by 2024. (Source: NEDO, New Energy and Industrial Technology Development Organization, Jan., 2019)
Contact: New Energy and Industrial Technology Development Organization, www.nedo.go.jp/english; Sumitomo Electric Industries, https://global-sei.com
More Low-Carbon Energy News CASIO, Battery Energy Storage, New Energy and Industrial Technology Development Organisation,