We've been graphing the outside temperature at there spot where we plan to place the economizer. Although the temperature sensor is getting direct sunlight (you will see it gets over 110 degrees when the sun is shining on it) it's amazing that even during the middle of a hot summer, we would be able to turn on our air-side economizer at night. Notice from the graph (click on the image to enlarge it) that a little after midnight, the temperature drops near 65. This would be borderline but might allow us to cool the servers with outside air.

Sorry for the lack of updates folks. Believe it or not, We've having a hard time finding a mechanical company to build our economizer. I've had 4 companies out and have only received quotes from one of them and it was on the high side of our budget. It's amazing how these companies come out and tell us what a great idea this is, yet none of them will call me back/provide a quote.

I have a list of 7 more companies in town that will be called Monday. There has got to be someone in town that will take this project seriously. If you know of any, please contact us.

Thanks.

Solar Powered...?

Just got word from one of our vendors quoting this project. The entire economizer he is designing will take < 5Amps of power. This means we can easily run this off solar / batteries creating 100% off-grid cooling 80% of the year. That is great news.