Thanks for the LIVE California load page. That page today shows the famous Duck's back curve that is developing in California. Yes, today (in winter), the curve still has the demand higher during the day than at night. But that same curve during the spring and fall does go negative in the middle of the day and that is the infamous "Duck's Back Curve" that will only get worse: https://www.greentechmedia.com/articles/read/the-california-duck-curve-is- real-and-bigger-than-expected#gs.4kJv=1w
For the typical march in 2016 in California, daytime load is 20% less than the overnight load due to solar. And it is only going to go down farther as more people realize how solar is now cheaper than the utility in most states... and it makes no sense not to invest in solar. Meanwhile electric costs at night will go up. When electricity gets so cheap in the day, then we will see life style changes simply as an economic result. Such as charging EV's during the day ... and there are two ways to do that. 1) Charging at work for commuters, and 2) charging during the day and moving some driving to night. The batteries in EV's are there. Economic advantages will take advantage of them... Bob, WB4APR -----Original Message----- From: EV [mailto:[email protected]] On Behalf Of jim--- via EV Sent: Thursday, January 04, 2018 11:30 AM To: Electric Vehicle Discussion List <[email protected]> Cc: [email protected] Subject: Re: [EVDL] No, electric cars (still) aren't crashing the grid. Again: Good News: EVs Are Not ... Bob Bruninga said (in part): > With solar, day will become the new night, with the cheapest energy available during the day. Already is in California. Where are you getting that? That is certainly not true. Demand is still highest during the day (or with the current weather that results in very little air conditioning load, during dinner). As soon as the weather warms up, air conditioning load drives the electric consumption to the highest loads (and therefore, prices). Yes, solar offsets some of the air conditioning load, but FAR from all of it. This week, most of California is cold (by our standards), but clear. That means that the AC load is very small, but solar is doing pretty well (for winter months). Looking at yesterday's chart from the California Independent System Operator (the people who manage bulk power statewide), the largest difference between total demand and net demand (total minus solar and wind) was about 10:25 AM. That seems a little odd since that is hours before normal peak solar hour. The chart does not differentiate between solar and wind. There is a different chart that does break down sources of renewable energy. It confirms that the solar peak was about 10:25. As I type this (08:25 AM) solar is producing 2,828 MW and wind is 86 MW. This constitutes about 62% of renewable sources, and all renewable sources constitute 18.5% of total demand. If you want to see what it's doing, check out: http://www.caiso.com 73 ----- Jim Walls - K6CCC [email protected] _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
