Transcritical Carbon Dioxide Charge-Discharge Energy Storage with Integration of Solar Energy

Fernandez, Reyes; Chacartegui, Ricardo; Becerra, Antonio; Calderon, Beatriz; Carvalho, Monica
September 2019
Journal of Sustainable Development of Energy, Water & Environmen;Sep2019, Vol. 7 Issue 3, p444
Academic Journal
New and improved energy storage technologies are required to overcome non-dispatchability, which is the main challenge for the successful integration of large shares of renewable energy within energy supply systems. Energy storage is proposed to tackle daily variations on the demand side, i.e., storing low-price energy during off-peak or valley periods for utilization during peak periods. Regarding electrical energy storage, several technologies are available with different potentials for scalability, density, and cost. A recent approach for grid-scale applications is based on transcritical carbon dioxide charge and discharge cycles in combination with thermal energy storage systems. This alternative to pumped-hydro and compressed air energy storage has been discussed in scientific literature, where different configurations have been proposed and their efficiency and costs calculated. The potential of the concept has been demonstrated to be an economical alternative, including hybrid concepts with solar thermal storage. Even at low temperatures, the addition of solar energy has proved to be cost effective. This paper explores the effect of introducing solar-based high temperature heat on the performance of different configurations of "Transcritical carbon dioxide - thermal energy storage system" cycles. A base-cycle with 8-hour discharge time is compared with different layouts. Discussions include details on the models, parametric analyses -including solar technology alternatives-, and simulation results. Round trip efficiency of the base case, without solar support and at pressure ratio of 9.4, is 52%. When solar input is considered, the efficiency is above 60%, increasing the turbine inlet temperature to 950 K. Estimated levelized cost of electricity values are in the range of pumped hydro and compressed air energy storage, 90-140 USD/MWh in agreement with other works on this thermal storage technology. The global analysis shows clear advantages for advancing in the study and definition of this technology for exploitation of synergies at different power ranges, integrated with mid/high temperature solar power plants and with smaller-scale renewable installations.


Related Articles

  • Compressed air systems: friend or foe? Keen, Mark // Works Management;Jun2015, Vol. 68 Issue 6, p15 

    The article offers the author's insights on industrial production of compressed air systems in Great Britain.

  • Review and prospect of compressed air energy storage system. CHEN, Laijun; ZHENG, Tianwen; MEI, Shengwei; XUE, Xiaodai; LIU, Binhui; LU, Qiang // Journal of Modern Power Systems & Clean Energy;Oct2016, Vol. 4 Issue 4, p529 

    As an effective approach of implementing power load shifting, fostering the accommodation of renewable energy, such as the wind and solar generation, energy storage technique is playing an important role in the smart grid and energy internet. Compressed air energy storage (CAES) is a promising...

  • A Novel Constant-Pressure Pumped Hydro Combined with Compressed Air Energy Storage System. Erren Yao; Huanran Wang; Long Liu; Guang Xi // Energies (19961073);2015, Vol. 8 Issue 1, p154 

    As intermittent renewable energy is receiving increasing attention, the combination of intermittent renewable energy with large-scale energy storage technology is considered as an important technological approach for the wider application of wind power and solar energy. Pumped hydro combined...

  • Risk-constrained scheduling of solar-based three state compressed air energy storage with waste thermal recovery unit in the thermal energy market environment. Jadidbonab, Mohammad; Mousavi-Sarabi, Hesameddin; Mohammadi-Ivatloo, Behnam // IET Renewable Power Generation;2019, Vol. 13 Issue 6, p920 

    This paper evaluates the self-scheduling problem for solar-based compressed air energy storage (CAES) plant with capability of compression waste thermal energy recovery via information gap decision theory (IGDT) approach. This feature gives the plant the ability to make income through...

  • Off‐design performance and operation strategy of expansion process in compressed air energy systems. Guo, Huan; Xu, Yujie; Zhang, Yi; Guo, Cong; Sun, Jianting; Zhang, Xinjing; Li, Wen; Chen, Haisheng // International Journal of Energy Research;Jan2019, Vol. 43 Issue 1, p475 

    Summary: Compressed air energy storage (CAES) systems usually operate under off‐design conditions due to load fluctuations, environmental factors, and performance characteristics of the system. In order to optimize design and operation of CAES systems, it is significant to study...

  • TWO-STAGE ENCLOSURE COOLERS CONSERVE COMPRESSED AIR.  // Modern Machine Shop;Oct2013, Vol. 86 Issue 5, p208 

    The article offers information on the Vortex A/C enclosure cooling system, a two-stage enclosure coolers for compressed air from ITW Vortec Co.

  • Landmark clean energy project for LA.  // Modern Power Systems;Oct2014, Vol. 34 Issue 10, p6 

    The article offers information on the project "the 21st Century's Hoover Dam" proposed for Los Angeles, California which includes the construction of a compressed air energy storage (CAES) facility that will provide clean energy.

  • TROUBLE SHOOTER.  // Plant & Works Engineering;Jul2015, Issue 397, p20 

    The article provides answer to a question of the reasons that caused compressed air system leaking.

  • Save It for Later. Strickland, Eliza // Sierra;Sep/Oct2015, Vol. 100 Issue 5, p32 

    The article offers information on compressed-air energy storage (CAES) projects in Texas and Toronto, Ontario such as the plan of Apex CAES in Texas to use excess electricity to operate compressors to pump air at high pressure into an underground salt cavern and a start-up Hydrostor in Toronto.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics