Event expected to curtail solar power just as summer’s fifth heatwave increases use of air conditioning and fansGreat Britain is braced to pay millions for backup electricity supplies to prevent a shortfall on Wednesday evening as the near-total solar eclipse is expected to wipe out solar power generation.The government’s electricity grid operator is expected to make multimillion-pound payments to secure electricity at short notice before the moon blocks up to 95% of the sun over parts of the country, the most dramatic solar eclipse visible in Great Britain since 1999. Continue reading…