National Grid has begun operating a vanadium redox-flow battery (VRB) with its 1-MW solar PV array in Shirley, Mass., to demonstrate utility operation of storage.
The company was the prime recipient of an $875,000 Massachusetts grant awarded to an application team that also includes Vionx Energy, Worcester Polytechnic Institute and the Energy Initiatives Group. (See Massachusetts Awards $20M in Energy Storage Grants.)
Carlos Nouel, vice president of innovation and development at National Grid, told RTO Insider that “the Shirley project will serve as a test bed for integrating storage and solar through the use of flow batteries, and support the development of new frameworks for dispatching stored solar power.”
Massachusetts lags far behind California in deploying utility-scale energy storage, but it is trying to integrate the technology into its power supply.
California utilities must procure more than 1.3 GW of energy storage by 2020. As of August, the state’s three largest investor-owned utilities are in the process of actually procuring nearly 1.5 GW, with about 332 MW currently online, according to a report last month by the California Energy Commission.
In contrast, Massachusetts last year said the state’s utilities must procure a combined 200 MWh of energy storage by Jan. 1, 2020. ISO-NE in April reported more than 500 MW of storage capacity in its interconnection queue. (See Overheard at the Energy Storage Association Annual Conference.)
Home-Grown Storage
Vionx (rhymes with “bionics”) is supplying the energy storage system for the Shirley solar project, which lies about 30 miles west of the company’s lab and headquarters in Woburn, Mass.
The company uses vanadium rather than lithium for energy storage, seeing the alternative flow battery technology as the best fit for utility-scale applications, including microgrids or industrial, behind-the-meter systems.
The use of vanadium in a flow battery was first explored in the 1930s and only made workable in Australia in the mid-1980s. Today, many companies use the technology, from giant Sumitomo to tiny CellCube, a VRB manufacturer trying to vertically integrate with its own vanadium mine in Nevada.
A VRB stores chemical energy in the form of vanadium-based electrolyte and generates electricity by inducing a reduction-oxidation (redox) reaction: that is, a transformation of matter by electron transfer across an ion exchange membrane, within a battery stack. The reaction is achieved by either applying an electrical load (discharge) or an electrical supply (charge) to the battery stack as the electrolyte is flowing or being pumped across the membrane.
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Power grid infrastructure in many parts of the United States is aging and struggling to meet increased electricity demand. In some specific areas, like ports and industrial facilities, high-powered equipment cannot be fully deployed because the grid cannot meet the intense but sporadic load demands.
Energy storage is a compelling complement to wind and solar, because of high flexibility and ability to operate as both load, when it charges, and generation, when the energy is deployed. Energy storage addresses many of the challenges to grid operators providing safe and reliable electricity for customers, and due to rapidly declining costs, performance improvements of lithium-ion batteries and an emergence of “grid-ready” energy storage products, commercially viable grid energy storage has now arrived, in certain applications. As energy storage becomes more widely available and economically feasible, it may make renewable generation, when paired with energy storage, a more viable option to provide reliable electric generation – and load demand – service in more areas of the world.
The US Department of Energy is launching a major research effort to develop a new generation of lithium-ion batteries largely free of cobalt, a rare and expensive metal delivered through an increasingly troubling supply chain.
Energy Storage North America (ESNA), the most influential gathering of policy, technology and market leaders in energy storage, applauds Governor Jerry Brown and the California State Legislature for passing landmark Senate Bill (SB) 100, which sets the largest-scale zero-emission electricity targets ever established for a U.S. state.
Several of the proposals approved by CAISO’s board on Wednesday were part of the third and final phase of the Energy Storage and Distributed Energy Resources (ESDER) initiative that stakeholders launched to foster greater participation of those resources in the wholesale market.
The California legislature has put its stamp of approval on SB 700, a bill that will provide up to $830 million in new incentives to add behind the meter storage to residential and small business solar systems. “What we’re trying to do is create a mainstream market for energy storage, like we’ve done for solar PV,” Bernadette Del Chiaro, executive director of the California Solar & Storage Association, tells Green Tech Media.
While a great number of blockchain endeavors in the solar arena focus on already established power generation systems and distribution networks, only a handful of projects so far look to both optimize and expand the market by
The market Study is segmented by key regions which is accelerating the marketization. At present, the market is developing its presence and some of the key players from the complete study are ABB, GE, Echelon, S&C Electric Co, Siemens, General Microgrids, Microgrid Solar, Raytheon, Sunverge Energy, Toshiba, NEC , Aquion Energy, EnStorage, SGCC, Moixa, EnSync, Ampard, Green Energy Corp, Growing Energy Labs Inc & HOMER Energy etc.