Bramley Electricity Substation · Transition modelFACILITY

As an HV substation, Bramley's dominant dependency is grid/electrical infrastructure rather than water or land, and its dominant impact channel is indirect — via the carbon intensity of the electricity it transmits, currently 217.4 gCO2/kWh for GB (Ember, 2025). Physical water risk is present but not acute: the site sits in a High baseline water stress basin (BWS score 3.38, 40-80% label) within the North Sea watershed, with a moderate drought score (3.31), but overall composite risk is scored Low (0.64) and coastal flood exposure is nil (0) with riverine flood score modest at 1.03. No flow-level data (energy, water withdrawal volumes) is populated for this facility, limiting granular dependency quantification.

The IEA WEO 2024 STEPS pathway projects GB grid carbon intensity to actually rise sharply to a 2030 horizon value of 100 gCO2/kWh relative to observed 217.4 — note this horizon figure appears to reflect a different indexing base and should be checked against the observed series for consistency, but directionally the trajectory implies material decarbonisation this decade. Water-related forward-looking scores (2030 wd/ws future scores, ws/wd labels) are entirely null in this dataset, so no quantified shift in baseline water stress or drought risk can be asserted through 2030; physical risk assessment for this horizon rests on the current Low overall risk score holding steady absent new data.

By 2050, the STEPS pathway shows GB grid intensity falling further to 30 gCO2/kWh, a near-complete decarbonisation of the electricity Bramley transmits and a strong tailwind for Scope 2-linked transition exposure across National Grid's asset base. No 2080 horizon data is available for either grid intensity or water stress/depletion scores, leaving residual long-run physical risk at this site unquantified beyond the current Low composite rating; absent updated climate-hazard modeling, decision-makers should treat 2050+ physical risk as an open data gap rather than a confirmed benign outcome.