[Lithium Battery] Update on Energy Storage Demand: Market Has Significant Expectation Gap -0727

English summary

According to research by IEA and NREL and other professional institutions, the current market largely ignores a very important point: the growth of energy storage demand is not a linear growth following wind and solar installed capacity. As the proportion of renewable energy generation continues to rise, the power system's demand for flexible resources will increase significantly. As traditional regulation resources gradually approach their limits, the energy storage configuration intensity per new unit of wind/solar installed capacity is expected to continue to rise, and energy storage demand shows obvious non-linear growth characteristics. If some people are accustomed to measuring market space by 'how many GWh of energy storage per 1GW of wind/solar', then this ratio is dynamically changing. The higher the penetration rate of renewable energy, the larger the scale of energy storage that the overall grid needs to support for each additional 1GW of wind/solar, and the energy storage configuration intensity will continue to increase. When the proportion of renewable energy is low, the grid can rely on thermal power, hydropower, nuclear power and cross-regional transmission to absorb fluctuations, and energy storage demand is not high; as wind and solar power gradually become the main body of the power system, system regulation pressure will rise rapidly, and the demand for curtailment, peak shaving and frequency regulation, and capacity support brought by new wind/solar will increase significantly. ...