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Energy Saver: Sometimes Homemade Spreadsheets Aren’t Enough

Free software tools from the U.S. Department of Energy can help solve energy efficiency issues

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The year I started my first job out of college, my employer’s process engineering group acquired its first computer. Yes, I know, I’m a dinosaur. About 10 years later I got my first personal desktop computer. Shortly after that, I made a life-changing discovery: the spreadsheet! This miracle of technology gave me a way to store and process previously unimaginable quantities of data. It also provided a tool for capturing calculations so that I could reuse them the next time I had to solve similar problems. At first, that seemed like cheating, but I quickly succumbed to the obvious convenience and time-saving potential. Over the next few years, I developed spreadsheets…

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