What Are the Advantages of a Dynamic Electricity Tariff?
A dynamic electricity tariff ties your price per kWh to the current market price, so it rises and falls with supply and demand throughout the day. Its main advantages are lower costs when you shift usage to cheap hours, a higher share of renewable energy, and full transparency into what you actually pay.
1) Cost savings — you use electricity when the market price is low and cut your bill by shifting flexible loads. 2) More renewable energy — prices are often lowest when lots of solar or wind is on the grid, so cheap hours usually mean green hours. 3) Transparency — you see the actual market price per kWh and can steer your consumption consciously instead of paying one fixed rate.
With a dynamic tariff the price per kWh changes by the hour (or day) based on the current electricity market. When supply is high — for example sunny or windy weather — prices drop. If you move flexible consumption like charging, laundry or heating into those low-price windows, you pay less than a fixed tariff would charge for the same energy.
Market prices tend to fall when renewable generation is abundant, because there is more supply than demand. By reacting to price signals you automatically shift your usage toward those hours — meaning you consume more when the grid is greenest. So the tariff aligns your personal cost savings with using cleaner electricity.
The advantage grows with how much load you can shift. Households and businesses with controllable devices — an EV charger, heat pump, battery storage or a smart energy manager — gain the most, because automation moves consumption into cheap hours without daily effort. If your usage is fixed and can't move, the price swings help less.
Prices can also be higher at peak times, so a dynamic tariff rewards flexibility rather than guaranteeing a low price at every moment. You typically need a compatible smart meter and, ideally, automated control to capture the low-price windows. Weigh your ability to shift load before switching.