Dated claims about a site's annual electrolyzer manufacturing capacity in gigawatts per
year. Each row is one claim at one point in time, so a factory accumulates several rows and
its history reads in sequence rather than as a single current number. Status separates
capacity that is producing from capacity that is planned, idled, or targeted but abandoned.
Figures are nameplate ratings as reported by the company, which can run ahead of actual
throughput.
technology_slug key String FK to Technologies.slug. Nullable when an announcement doesn't break capacity out by technology.
capacity_value Float64 The capacity figure itself, GW/yr. Tag units on this column once created.
status String One of: operational / under_construction / announced_target / idled / abandoned_target / decommissioned.
'idled' (added Aug 2026): capacity that physically exists but is not producing — halted, or the owner stopped pursuing new business — while the plant stands and could restart. Prefer over 'decommissioned', which is for capacity permanently retired, closed or sold.
'abandoned_target' (added Aug 2026): a target no longer live, either explicitly withdrawn by the company or whose date has passed unmet. The source note says which. Kept as history rather than deleted — without this value, summing announced_target overstated the pipeline by ~13 of 29.5 GW.
For live totals, filter to operational plus announced_target. Idled rows carry capacity_value 0; abandoned targets keep their original figure and are excluded by status instead.
event_type String new_facility / expansion / revision_up / revision_down / target_announced / actual_completion.
announced_date Date When this claim was made public.
effective_date Date When the capacity does/did or is expected to apply. Often absent for announced_target rows.
source String Citation for this specific figure.
source_url String Link to the source, where available.
facility_slugs key List<String> List of Facilities.facility_slug this event's capacity_value covers. Usually one slug; multiple when a single reported figure spans several named sites (e.g. a combined multi-country total).
