tag:blogger.com,1999:blog-3158555565127520038.post6609747052577479469..comments2023-12-13T05:28:34.250-05:00Comments on Ask the Renewable Energy Guru: Connecting to the Utility GridRobhttp://www.blogger.com/profile/15014385973848101620noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-3158555565127520038.post-72429030652095066352018-05-18T22:22:23.672-04:002018-05-18T22:22:23.672-04:00Wow - Gregory, that is a tall order combining all...Wow - Gregory, that is a tall order combining all these technologies in an optimal way. Pumped storage is best done with a centrifugal pump of the split case variety. You'll have to start by determining head and flow to give the required storage capacity. Then match a pump to that head and flow. Figure the whole pumped storage round trip efficiency is 60% at best. Then you might just want toRobhttps://www.blogger.com/profile/15014385973848101620noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-20295021855852616672018-05-18T11:37:31.178-04:002018-05-18T11:37:31.178-04:00Hi, I'm designing a pumped hydro system to use...Hi, I'm designing a pumped hydro system to use PV as energy source. Elevation and tank location is no problem. We have 200 meters or more. The idea is to provide 10 to 15 houses. 5,000 to 8,000KWh a month total. Thinking of using a battery bank and the hydro to keep it charged. This so the hydro can shut down instead of wasting water at the wrong efficiency point. What type of pump or pumps Anonymoushttps://www.blogger.com/profile/17103539731234890856noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-63036320638575995022012-10-11T00:05:18.819-04:002012-10-11T00:05:18.819-04:00Hi Jon,
If you are generating 50KW with a 100HP 3...Hi Jon,<br /><br />If you are generating 50KW with a 100HP 3 Phase motor you will generate very little additional heat in the windings when using a C-2C capacitor arrangement to get single phase and your efficiency will not be affected much either. <br />I would generate 480V and use a step down transformer to get your 120VAC/120VAC- 240VAC standard utility interconnect. The C-2C capacitors Robhttps://www.blogger.com/profile/15014385973848101620noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-2515731222000173812012-10-10T23:28:06.113-04:002012-10-10T23:28:06.113-04:00Looking at doing a 50kw grid intertie from a 100hp...Looking at doing a 50kw grid intertie from a 100hp 3 phase induction motor.<br /><br />The grid only has single phase around here so I would need to be operating the induction motor in a 2 phase configuration.<br /><br />How is the efficency when doing this? Is 100hp (75kw) to small for such a project?<br /><br />How much did that fancy interconnect relay cost as I will also need one of those...<Jon Mundallhttp://rtech.canoreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-11339174277717729742011-08-15T11:26:20.853-04:002011-08-15T11:26:20.853-04:00ACT to amend the public service law and the public...ACT to amend the public service law and the public authorities law,<br /> in relation to net energy metering with micro-hydroelectric generating<br /> equipment<br /><br /> THE PEOPLE OF THE STATE OF NEW YORK, REPRESENTED IN SENATE AND ASSEM-<br /> BLY, DO ENACT AS FOLLOWS:<br /><br /> 1 Section 1. The section heading and paragraph (a) of subdivision 1 of<Brettmcdermid@yahoo.comhttps://www.blogger.com/profile/05621521225834223370noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-54499554816361841082011-08-15T11:00:13.353-04:002011-08-15T11:00:13.353-04:00Passage Of Power NY Act Caps Major Year For Energy...Passage Of Power NY Act Caps Major Year For Energy Policy In New York State<br />Legislature Acted on Power Plant Siting, On Bill Recovery, Power For Jobs, Net Metering and Solar Energy<br />June 24, 2011<br /><br />(Albany) Assembly Energy Committee Chair Kevin Cahill (D – Ulster, Dutchess) announced the passage of legislation to reauthorize and improve the Article X power plant siting law, Brettmcdermid@yahoo.comhttps://www.blogger.com/profile/05621521225834223370noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-8255705537193801882011-08-15T10:41:22.202-04:002011-08-15T10:41:22.202-04:00GOOD NEWS!!!
I heard that New York State has recen...GOOD NEWS!!!<br />I heard that New York State has recently passed micro hydro for net metering, sounds like now its just up to the public service commission to implement the ruling change for all the various utility providers statewide.Brettmcdermid@yahoo.comhttps://www.blogger.com/profile/05621521225834223370noreply@blogger.comtag:blogger.com,1999:blog-3158555565127520038.post-39012101612053757072011-07-03T15:06:03.213-04:002011-07-03T15:06:03.213-04:00I am doing a 15 kW grid conencted systemn in UK - ...I am doing a 15 kW grid conencted systemn in UK - grid is single phase. To operate grid connected only.<br />Want to use induction generator (tough and cheap) <br />Will run up to synch speed on spear, then connect (with some inrush current limiting)<br />Need to find out how to claculate capacitance needed for excitation and power factor correction.<br />Do you have some info or point to where IDave Robertshttps://www.blogger.com/profile/17924302174726777945noreply@blogger.com