ARPA-E is the Advanced Research Projects Agency-Energy, a DARPA-type government agency that funds energy-related high-risk, high-reward projects. Like most government agencies, they tend to bury their projects in strained, dull-sounding acronyms like DELTA, which stands for Delivering Efficient Local Thermal Amenities. But ARPA-E’s DELTA project is, fortunately, much more interesting than it sounds: DELTA is funding a bunch of different ways in which climate control can be moved from building-level to personal level.
The problem that ARPA-E wants to solve with DELTA is the ridiculous amount of energy that we waste heating and cooling buildings that are, statistically speaking, almost entirely unoccupied. When you turn on the heat or the AC, you’re dumping energy into changing the temperature of an entire structure, when all you really care about is the little area of comfort surrounding you. And if some people like it warmer and some people like it colder, one of those two groups is doomed to misery. It’s a terrible, ridiculous system.
A much better approach would be to develop technologies for highly localized and customizable temperature control. Why bother heating or cooling an entire building, when all of the people inside it can instead customize their own little climate bubble to their ideal temperature? This is what ARPA-E’s DELTA project is all about. Here’s a look at three different technologies from ARPA-E’s annual summit that are in the process of moving from prototype to commercial reality within the next two years.