Comment by daedrdev

When the grid has to much money for 10 seconds, the cost of finding an having a productive asset that is ready to accept such a short burst of energy means that paying people to throw it away can easily be cheaper, leaving you with net positive money that can be used towards keeping people warm. Real systems involve tradeoffs, and so there will always be some short enough time frame where throwing away energy is better for society and human welfare than building infrastructure to use it. Everyone already using the energy gets it for free when prices are negative.