Why do rates vary?

Energy is a commodity. This means it is bought and sold on the open market, just like the stock market. Knowing this can help you understand basic movements. When demand is low, the price goes down. When demand for energy is high, such as during peak summer and winter months, the price goes up. Mass Megawatt’s variable rate product reflects this fluctuation. For customers who prefer price certainty, Mass Megawatts also offers fixed rate plans.