What does the number 350 mean?

I also had this question.  Here's a link I found very helpful.

Comments

Post a Comment

Popular posts from this blog

What does sustainability mean post Copenhagen?

I grappling with the role of sustainability post-Copenhagen.  It just strikes me as so much fiddling while Rome literally burns.  While Obama put a happy face on agreements reached there, I can't imagine how people can see it as anything but a dismal failure. A recent editorial  does a good job of capturing some key issues, though it paints a picture that's a bit too rosy for my taste. The IPCC  is a key scientific group established to provide decision-makers with accurate scientific information.  By the way, you won't find any information here from climate change skeptics.  That's a waste of time and crucial energy that you can go and research yourself if you so choose. China and the U.S. haggle over crumbs that take on a 'he said she said' quality which is utterly short-term.  While the U.S. has its hands bloody in this argument, China again once again rings the sovereignty bell arguing that climate change limitations mess with their sover...
Read more

Is California About to Require that by 2045 All Electricity Must Come from Renewables?

Image
Not exactly. Let me explain. Our lack of even the most basic understanding of how the elecricity system operates (explained below) allows us to mistakenly imagine we are taking actions that will shut down CO2 emitting generators. A number of headlines read something like "California Poised To Require All Its Electricity To Come From Renewables."  SB100  appears to be a bit more complicated, however.  Plus, electricity complies to the laws of physics, not the laws we mere mortals devise. Hoefully, this post will identify several important implications of these distinctions. Recognize that electrons (what electricity consists of) going over the wires thorughout California flow from all generators located everywhere within what’s called the Western Interconnect (WECC).  Electrons are already present throughout all the electric wires in every building in every community at every moment in time. When you flip a light switch on, more electricity gets generated ...
Read more

100% Renewables Study Implies Historic Construction Program

Image
The often cited study by Mark Jacobson et. al. that asserts it's economic to replace every fossil fuel use with either electricity from wind, water, and sun (WWS-only) or hydrogen produced using WWS-only in 139 countries over the next 33 years implies a massive construction program the likes of which we may not have ever seen. I find it useful to compare the implied construction program to what we have experienced in the recent past. Click  here  to see his paper on the 50 U.S. states. Over the next 33 years, even under his extraordinary drop in total electric load, he envisions approximately 5.8 million MW of new generation are needed (plus an additional 600GW for peaking and system stability). He reports that as of 2013, 2.71% (of 5.8 million MW) is currently installed, or approximately1.6 million MW. Such quantities indicate an extraordinary construction program, especially since the U.S. installed capacity rose by only about 177,400MWs over the eight year pe...
Read more