Storage as an energy business deal has two basic value streams 1.. CAPACITY - this is an ancillary services play (all services but mainly constraint, kVARS) and also the value of avoided cost in line substation upgrades. 2.. LOAD SHIFT - peak to off peak I know little about hydro. I know a good deal about the value of capacity and load shift. And a good deal about grid interconnect
What I'm trying to determine are the following general issues 1.. CAPACITY - In a perfect world this unit won't run very much if at all. It competes with a peaker. Therefore you want to optimize for for first cost not effeciency. Minimum size would be about 200 kW. General issues, round trip effeciency, minimum head height, gal per kW, what technology? $ per kW equipment installed only. 2.. LOAD SHIFT - This will run every day so effeciency is more important than first cost. At least 30% round trip effeciency is the hurdle rate. Same general issue and minimum size, 200kW, round trip effeciency, minimum head height, gal per kW, what technology? $ per kW equipment installed only. There is no reason why this storage can't go exist with a seasonal dam or other unfirm renewable generation. I'm doing both the deals now with other storage technologies. Bill Shanner [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Has someone you know been affected by illness or disease? Network for Good is THE place to support health awareness efforts! http://us.click.yahoo.com/RzSHvD/UOnJAA/79vVAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
