🃏 Battle Cards
Top Trumps, played on Europe's grids right now. You and the computer get eight country cards each. Pick one of the five stats on your top card — highest wins, except gCO₂/kWh, where lower wins. The winner takes both cards; whoever lost the round chooses the next stat. First to run out of cards loses, or after 20 rounds the bigger pile wins. Everyone gets the same deck each day.
Dealing live grids…
Renewable share, carbon intensity and generation come from the live ENTSO-E / Energinet
feeds (refreshed every 10 minutes) — carbon intensity is computed from the mix with the
Ember-calibrated factors in emission-factors.json. Population and installed
nuclear capacity are annual figures from countries-insights.json (2025).
Renewable share counts hydro, wind, solar, biomass, geothermal, waste, marine and other
renewables; nuclear is low-carbon but not renewable.