Nuclear scored the highest grade of an A, followed by natural gas and coal with C’s. Solar was the only renewable energy source to score higher than an F with a grade of a D, while hydro and wind scored F’s.
Texas gets electricity from six sources: coal, nuclear, natural gas, solar, hydro and wind...Some natural gas pipelines froze, contributing to the blackout. However: "Remarkably, natural gas still generated electricity at 38 percent of its total capacity throughout the energy emergency – providing on average over 65 percent of all electricity generation through Monday and Tuesday – despite roughly 30 GW being inoperable due to frozen pipelines holding up fuel."
It was the “green” energy sources that failed to show up for work: "The three worst-performing generating assets, on the other hand, belonged exclusively to renewable energy sources: solar, hydro, and wind. Had Texas been even more reliant on these energy sources, as renewable energy advocates around the country desire, the energy crisis in Texas would have been even worse."
Solar was irrelevant, and wind virtually irrelevant. - "You can rightfully label wind energy as the most unreliable energy source during the Texas energy crisis." As such, you can rightfully label wind energy as the most unreliable energy source during the Texas energy crisis. While it may not have been the primary cause of the power outages, it certainly wouldn’t have done Texas any good to have more wind capacity on the system. In fact, more wind capacity would have only made things worse.
'Today, about a third of California’s electricity comes from renewables, including solar, wind, geothermal, biomass and small hydropower dams. Solar installations, in particular, skyrocketed. In just five years, solar went from less than 1 percent of California’s in-state electricity generation in 2012 to over 11 percent in 2017. But electricity from natural gas has also held steady. In 2017, it represented more than 40 percent of California’s in-state generation.'
- 'Particulate aerosol pollution reductions...led to an increase in surface radiative forcing'
It has been assumed COVID lockdowns and their associated reductions in human CO2 emissions would be a “step in the right direction” with regard to climate change mitigation. But a new study finds the particulate (aerosol) pollution reductions from less industrial and transportation activity in Europe during the months of March to May (2020) actually led to an increase in surface radiative forcing ~65 times greater than from business-as-usual CO2 emissions.