The energy sector, known for its slow pace of change, is undergoing a dynamic transition.Theimperatives of climate change, energy poverty and energy security to underpin development andindustrial strategy have made the widespread adoption of renewables and related technologies anessential solution.Policy drivers, technology developments and international co-operation havemoved these technologies from niche to mainstream, especially in the past decade.Even in theface of the turmoil caused by the cOVID-19 pandemic, renewables-based systems demonstratedremarkable resilience, showing technical reliability of renewables-based electricity system withhigh share of solar and wind.