Grid-Scale, Long-Term Energy Storage: Repurposing Hydrocarbon Reservoirs, Resources, and Infrastructure to Store CO2 and Heat (Mid-Project Progress Report)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Upadhye ARU Associates, Pleasanton, CA (United States)
The purpose of this project is to create a viable business case for CO2 capture, use, and storage (CCUS) by enabling grid-scale, long-term energy storage in mature hydrocarbon reservoirs and saline aquifers. Our CCUS approach, called the Earth Battery, is based on patents issued to Lawrence Livermore National Laboratory on Multi-Fluid Geo-Energy and Earth Battery Systems and to the University of Minnesota and TerraCOH, Inc. on CO2 Plume Geothermal (CPG). Excess energy can be used to compress and store CO2 and hot brine underground in permeable formations, including: (1) saline aquifers suitable for geologic CO2 storage (GCS) and (2) hydrocarbon reservoirs, the focus of this project featuring a pilot test in a mature oil and natural gas (NG) field. Excess energy can come in the form of excess electricity from the grid or excess NG that does not have a market. It can also come in the form of excess heat from other sources, such as from the heat of air or CO2 compression or from a nearby base-load power plant or solar thermal energy (STE) facility, when heat is not needed to generate electricity from those sources.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1860843
- Report Number(s):
- LLNL-TR-807801; 1013471
- Country of Publication:
- United States
- Language:
- English
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