Most panels create electricity that is DC and in the 9 to 24 volt range. That power is then run through a converter to create the 120VAC power. Many systems now are no longer attached to the grid. People instead have a secondary system in the house, some times with a relay, so the solar power is used for things in the home, but when the solar power level drops, it switches back to the grid connection. The big problem with solar is that the electric companies need to maintain enough capacity to meet demand. On a nice sunny day there could be quite a bit of demand met by solar, but if a storm system rolled through, that solar would be interrupted, and then the utility would have to bring additional generating capacity on line to avoid brown outs. It takes time to get a boiler fired and up to capacity. I used to operate a small production boiler, 1.2 million horse power. It took over an hour to start that thing from cold. If I remember correctly, the power company is required to maintain operation at something like 140% of projected demand. In other words, if, based on history, demand for a Saturday in May is projected to be 1,000 megawatts, they need to have generating capacity on line to produce 1,400 megawatts even if actual demand is running at say 800 megawatts because solar or wind power is generating 200 megawatts. The companies constantly monitor demand. If an unusually hot day causes demand to spike, as soon as they cross a threshold of 80% consumption, they need to bring generators on line to get back to the 70% line. Those are the numbers I remember from decades ago. It could have changed.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
