The grid only ran on 100% renewables for relatively short periods: two 70 hour spans (Portugal managed a four-day streak in 2016).
Imports and conventional generation from natural gas were still needed to balance the grid because solar and wind can vary significantly.
The proposition that a full year’s worth of peaks and valleys can be managed with renewables alone has yet to be tested.
So how do you propose to fill in the gaps if everybody goes on that 'green' path??where does the 99.999% of other energy come form
