Tag Archives: energy

The 2017 Eclipse Impact on the Grid

On Monday, August 21, 2017, a total solar eclipse will pass over the Pacific Northwest (Oregon, Idaho, Wyoming etc.). The California balancing authority area will be affected by a partial eclipse between 9:02 AM and 11:54 AM PPT. As a partial eclipse, the sun will be obscured from 76% in Northern California to 62% in Southern California border area. The reduction in solar radiation will directly affect the output of the photovoltaics (PV) generating facilities and rooftop solar.

From the California ISO 2017 Solar Eclipse Report.

In looking up 2017 Eclipse stuff, I wondered if anyone had modeled the Solar Power generation drops during it. Of course they had, and I quickly found this California ISO report on it. California will probably be hit harder than this than most given their solar install base, so accurate modeling is really important.

I have yet to find anyone modeling wind for the event. As that definitely does pick up with the temperature shifts pretty heavily right around the event. But maybe it's too little of an impact to notice?

 

Deaths per Terrawatt Hour

The folks at Next Big Future did an analysis of deaths per unit energy produced back in 2008, which was republished recently due to the media's focus on the Japan reactor.  (There is also a many eyes visualization of the data.) World wide Coal kills 4000 times as many people each year as Nuclear. In the US things are a bit better than world wide, and it's only killing about 1/2 as many as Oil, but it is still a big killer.

I think people are reacting to this safety issue much like they do flying vs. driving. Flying on an airplane is far safer than driving, but if it goes wrong a lot of people all die in one place at one time. The real killer takes us in ones and twos every day in every corner of this country.

(Image courtesy of Seth Godin)