The amount of zero-carbon power, including nuclear, outstripped that from fossil fuels for a full 12 months for the first time in Great Britain in 2019, National Grid said.Figures from National Grid, which is responsible for balancing supply and demand in Britain’s electricity network, show that a combination of wind farms, solar and nuclear energy, alongside energy imported by subsea interconnectors, delivered 48.5% of Britain’s electricity in 2019 compared to 43% generated by fossil fuels. The remaining 8.5% was generated by biomass.