by kublikhan » Mon 13 Mar 2017, 17:42:06
$this->bbcode_second_pass_quote('ROCKMAN', 'A')gain all this accomplished in Texas WITH NO STORAGE CAPACITY. And if/when commercial grid storage is developed? Texas could almost immediately start pushing closer to full green energy capacity since it has already gotten a big leap on alt energy production.
Take more pride in what Texas has accomplished with energy storage. Even without pumped hydro Texas is expanding it's energy storage on multiple fronts including CAES, thermal, batteries, and flywheels.
$this->bbcode_second_pass_quote('', 'T')exas is assuming a lead role in the nation through its innovative application of storage that further defines the vital role storage can play in enhancing grid reliability and lowering rates.
The combination of geology, climate, regulated and unregulated electric utilities, an independent system operator (ERCOT), Federal tax incentives that encourage intermittent wind and solar generation, and importantly, a business-friendly environment makes Texas an ideal test bed for storage technology. The diverse range of storage applications —now operating, and those in the pipeline — are defining how, when, and where storage will thrive in the future Texas market.
Wholesale Grid Services ProjectsThere are nine utility-scale battery electric storage systems (BESS) operating currently in Texas.
The Apex Bethel Energy Center compressed air energy storage (CAES) project is rated at 317 MW of capacity and will be the largest storage project in the Texas market. The project, located at Tennessee Colony in Anderson County, Texas, has all of the regulatory approvals needed to put the project in place. An Interconnection Agreement has also been entered. It is currently scheduled to begin construction in June 2017 and become operational in 2020. The project is planned to provide black start, frequency regulation, ramping, and renewables energy time shift.
A new company, Chamisa Energy, has announced a compressed-air energy storage (CAES) unit to pair with wind power in Swisher County, Texas. The project will compress air into salt caverns that will be carved 2,000 feet below the surface. Chamisa has partnered with Dresser-Rand and intends to use their SMARTCAES technology, which provides a wide array of electrical services including peaking, intermediate, base load, tolling and ancillary services. The aim is to facilitate the accommodation of intermittent power resources to the grid by providing storage and other grid reliability services in the wind-region of the Texas Panhandle. The project will likely connect to the ERCOT CREZ lines that are crossing Swisher County, and to Xcel’s system in the Southwest Power Pool (SPP). This would put Chamisa in the interesting position of being able to arbitrage price differences between the two power markets. The generation capacity could be expanded to 810 megawatts in phases by creating more caverns. The project is in a full study stage at ERCOT as of the August 2016 (see GIS Report linked above). The 270 MW facility is expected to come online in 2018.
Thermal ProjectsThe state’s 13 operational thermal projects totaling 111,452 kW of capacity include chilled water thermal and ice thermal technologies
Flywheel ProjectsThere are three flywheel projects in Texas totaling 5,615 kW, including a 4,800 kW unit in Austin.
Lessons from Existing Storage ApplicationsTexas has become a leading example of the economic value of storage through innovative applications such as emergency backup power, grid reinforcement, reducing transmission and distribution (T&D) costs, time-shifting usage to non-peak periods, balancing variable generation, and other ancillary services. The number and variety of projects summarized in this series is testimony to Texas’ promise of meeting future energy needs using innovative storage technologies and applications.
Texas’s success in adopting these innovative storage technologies should serve as a model to other states interested in proliferating alternative sources of energy for utility, microgrid, and community-scale applications.