Tata Power Delhi Distribution Limited (TPDDL) has launched an app called Sajag, with the aim to raise awareness for energy saving needs. The app is currently available for Android and available on Google Play and TPDDL’s website. The app allows users to calculate energy usage or savings, displays energy efficient options for homes, find energy efficient appliances, energy saving tips and details on renewable energy. The app also lists movies and videos on energy saving and conservation, tips, quotes and a photo gallery. Energy saving calculator: This feature lets users select from among load types; lighting, heating and cooling, after which users can select the type of device; tubelight, CFL etc., in case of lighting, geysers in heating and fan, AC and refrigerators in cooling. Users then need to select the appliance type, eg., the size of the fan, star rating of the AC etc., and enter the number of such appliances in the house. Finally, users need to enter the number of hours the device operates per season (summer, winter and rainy). Based on the information provided, the app then generates the yearly cost of running that particular device. This feature is especially useful if users want to get an estimate on yearly difference in bill when say upgrading all the lights in the house from tubelights to led fixtures, or deciding between a 3 star and 4 star rated AC. However, it’s not very useful for calculating the average monthly bill as users cannot enter information about different devices…
