{"id":451,"date":"2025-09-16T14:17:41","date_gmt":"2025-09-16T14:17:41","guid":{"rendered":"https:\/\/docs.qilowatt.eu\/docs\/inverter-operating-modes\/"},"modified":"2025-09-16T14:55:53","modified_gmt":"2025-09-16T14:55:53","password":"","slug":"inverter-operating-modes","status":"publish","type":"docs","link":"https:\/\/docs.qilowatt.eu\/en\/docs\/inverter-operating-modes\/","title":{"rendered":"Inverter Operating Modes"},"content":{"rendered":"\n

Introduction<\/h2>\n\n
The Optimizer can control the inverter in different operating modes. Choosing the right mode is necessary to ensure optimal energy usage and avoid unnecessary costs. <\/div>\n\n

Prerequisites<\/h2>\n\n
\u2022 Qilowatt account created \u2192 Creating a user account<\/a><\/em>\u2022 Device connected to WiFi \u2192 Connecting the device to WiFi<\/a><\/em>\u2022 Inverter added to Qilowatt app \u2192 Module setup<\/a><\/em>\u2022 Solar inverter data entered \u2192 Solar inverter setup<\/a><\/em>\u2022 Price parameters entered \u2192 Prices and marginals<\/a><\/em><\/div>\n\n

Step-by-step Guide<\/h2>\n\n

1. Normal<\/h3>\n\n
\u2022 PV production first covers the current consumption.\u2022 The surplus is stored in the battery.\u2022 If the battery is full or has reached its charging limit, the surplus is exported to the grid (according to the parameter Maximum export limit<\/em>).\u2022 When there is no PV, consumption is covered from the battery. If the battery is empty, the deficit is purchased from the grid. <\/div>\n\n

2. Export limit<\/h3>\n\n
\u2022 Used during hours with negative electricity prices to avoid costly exports.\u2022 PV production is limited to exactly the amount required for current consumption and battery charging.\u2022 Once the battery is full, PV production is reduced to match the load.\u2022 If consumption exceeds PV production or battery output, the deficit is purchased from the grid.<\/div>\n\n

3. Buy<\/h3>\n\n
\u2022 Energy is purchased from the grid to charge the battery.\u2022 If PV is available, it is used first.\u2022 Current consumption is also covered by grid energy.<\/div>\n\n

4. Sell<\/h3>\n\n
\u2022 The battery is discharged to sell energy to the grid.\u2022 Most inverters prioritize PV production for selling, but if needed, additional energy is taken from the battery.\u2022 Consumption is covered from PV and the battery.<\/div>\n\n

5. Save battery<\/h3>\n\n
\u2022 All energy is purchased from the grid.\u2022 Used, for example, at night when electricity is cheap, to later sell or use during more expensive hours.<\/div>\n\n

6. PV Sell<\/h3>\n\n
\u2022 PV first covers consumption.\u2022 The surplus is exported directly to the grid (according to the Maximum export limit<\/em>).\u2022 If PV production exceeds this limit, some inverter models (e.g. Solis, Solax Ultra, Sofar) direct the excess into the battery.<\/div>\n\n

Result<\/h2>\n\n
The inverter\u2019s operating mode is set according to your chosen strategy.<\/div>\n\n

If it Doesn’t Work<\/h2>\n\n
\u2022 If the inverter does not follow commands, check the selected operating mode.\u2022 If the battery does not react, ensure the mode supports battery usage.\u2022 If the problem persists, contact our team: support@qilowatt.eu<\/a><\/div>\n\n

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