They also wrote that they will require better predictions of consumer behavior ( PDF). EcoGrid researchers noted that they could use more detail on how individual homes respond when homeowners turn off heating systems-this, in order to induce the maximum possible demand response while keeping residents comfortable ( PDF). But if grid operators want to add more volatile energy sources such as wind, which Bornholm’s leaders predict will provide up to 55 percent of locally produced energy next year, they will want even more control over demand. Analysts and researchers have been saying for years that aggregators are a good idea for smart grids, but electricity markets do not seem to be attracting them on their own.ĮcoGrid was hardly a disappointment-it won an award during June’s European Sustainable Energy Week. It would operate as a middleman between consumers and utilities, bundling flexibility in electricity demand to better match demand to fluctuating available power. Now a Danish-government-funded follow-up project, EcoGrid 2.0, proposes to do better by adding a new player into the grid’s mix: a demand aggregator. Yet researchers reported last year that they could reduce demand by only 1.2 percent of peak load, despite early predictions of up to 20-percent reductions for so-called virtual power plants. The EU-funded project, called EcoGrid, won widespread buy-in from residents, who could also earn small payoffs when they reduced demand. It was supposed to empower the utility and consumers with a simple, direct market ( “The Smartest, Greenest Grid,” IEEE Spectrum, April 2013). ![]() A few years ago almost two thousand bold households on the Danish island of Bornholm joined a surge pricing experiment run by their electricity utility.
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