Solar in Portugal
Credit: ACCIONA Energy

The aspiration for a 100% green electricity grid is no longer a dream. It is regularly being achieved in the real world for weeks or months on end. This development is absolutely crucial, since burning fossil fuels at the rate we are burning them is rapidly changing the climate in ways that seriously harm our quality of life.

In this past March, Portugal not only generated enough electricity from renewables to power the whole country for the whole month, it actually produced extra electricity this way. Portugal is constructing an underwater cable to export green electricity to Morocco, and hopes to strengthen the links of its grid to Spain and France. But the important thing is that Portugal, a country of over 10 million people, may soon regularly avoid burning fossil fuels for making electricity nationally. 100% renewables are becoming normal.

Portugal has an advantage in that some 30% of its electricity comes from hydro. Still, if it had not invested heavily in wind and in re-engineering its national grid, it […]

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