评估电池储能系统对电网排放的影响.pdf

1、Sizing the impact of BESS on grid emissionsMotivation,methodology,results,and next steps18 February 2025Energy Storage Summit2BESS carbon emissions what did we doDevelop methodology to calculate BESS emissions impactFind the right metricsCollect necessary dataValidate methodologys resultsUse actual

2、inputsFinetune methodologyStandardize methodology and make it widely accessibleMake methodology publicCreate online toolWorking groupFocus of presentationFocus of panel3Pulse motivation why participateMissionDo good:are we having the desired impactESGReporting:LCA to consistently track and update th

3、is numberInvestorsRequirement:asked to track our environmental impactIndustryCredentials:BESS industry struggles to prove its carbon benefitsDeveloping the methodology5Aim 1:Developing a methodology1)Energy actionsBatteries follow price signals,shifting energy from low price periods to high price pe

4、riods.Low price periods tend to be lower carbon emitting,high price periods tend to be higher carbon.The marginal unit in a period responds to the BESS asset charging/discharging.The difference in emissions between these marginal units can cause a net emission or abatement.How can a battery reduce e

5、missionsNuclearSolarFossil FuelsBESS chargingBESS discharging12PM1PM2PM3PM4PM5PMDemandMWhLow emission periodHigh emission periodShifting emissions from low to high emissions period6Aim 1:Developing a methodology1)Energy actions2)System servicesNESO must procure a certain level of inertia on the syst

6、em,typically from fossil fuel generators.The dynamic suite of flexibility products has reduced the inertia level that NESO must procure.This means on some occasions fewer fossil fuel generators need to be turned up,leading to carbon savings,and some of this can be attributed to batteries participati