In Darwin, many households are on a standard flat-rate electricity tariff, while time of use options may have limited availability. Whether you can access one depends on your retailer, meter type and property, so ask Power and Water or your electricity retailer about available plans and the exact peak and off-peak hours. A time of use tariff may help if you can shift usage away from expensive periods, but air-conditioning, daily supply charges and solar feed-in arrangements can affect the result. Compare your actual usage and check current NT tariff information before switching.