At this moment I would look into a generator, I know sounds crazy but you could use it to just run your AC units, or peak shave (limit the amount you are using from the utility) plus you get the added benefit of having a back up system to cover your production line. If you really want to go for broke sell the power you don't need back to the utility at a premium, and then your generator is paid for in a year or less. Ted Hello Techies, I wonder if anyone can come up with some good ideas for our little problem: We now have a heatwave with the temperature at over 30 DegC in the shade that's 86 in old money. Our conformal coating room which is 10,000 cubic feet (that's 283.17 in new money) is extracted at 5000 cubic feet per minute = 30 exchanges per hour. The problem is, I cannot easily chill that amount of air without incurring the wrath of the Euro-Environmental Lobby (we call them Eels! If you need to figure out why, then you need to get out more) Can anyone suggest a novel, but effective way I can chill my staff - apart from freezing their wages of course! What a year, first we drown then we cook - yours in anticipation Larry the Lobster. RegardsRegards, Graham Naisbitt [log in to unmask] http:// www.concoat.co.uk <http://www.concoat.co.uk/> For instant access to Product Data Sheets register on the Tech-Shot area of http:// www.concoat.co.uk <http://www.concoat.co.uk/> Concoat Limited Alasan House, Albany Park CAMBERLEY GU16 7PH UK Phone: +44 (0)1276 691100 Fax: +44 (0)1276 691227 Mobile: +44 (0)79 6858 2121