The economic value of electrical energy depends on consumption and availability. On the electricity market, low prices occur when there is an oversupply of electricity, for example from wind power generation. High prices, in contrast, result from supply shortages, such as power plant outages or reduced electricity generation from renewable energy sources. Arbitrage in the electricity market, as in all other markets, is a way to make a profit. This involves storing electricity in a battery storage system when the price for it is low. If the price rises, the stored electricity is fed into the grid. Arbitrage opportunities can help the invested costs in sustainable energy solutions pay off sooner, enabling businesses to make a smart transition to renewable energy.