joulie is an intelligent solution for optimizing your electricity consumption. Developed by Klaus Wildhofen, this iPhone app is designed to work in conjunction with a photovoltaic system to maximize your self-consumption of generated electricity. Over time, joulie continuously improves its performance, ensuring that you make the most of your solar power.

With joulie, you have direct control over your hot water and heating systems through your smartphone. The app provides real-time information on the behavior of your connected devices and energy producers, presented in informative graphs. Additionally, joulie offers energy-saving features such as the Eco and Eco Mode+ settings.

If you have a photovoltaic system, joulie allows you to monitor your electricity production and consumption. You can easily see how much power you are generating and how it is being utilized. The app also includes an alarm function that notifies you of any deviations from the predicted energy consumption of your connected devices.

Overall, joulie is a comprehensive energy optimization assistant that empowers users to take control of their energy consumption and make the most of their photovoltaic systems.