Introduction #
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.
Prerequisites #
• Qilowatt account created → Creating a user account
• Device connected to WiFi → Connecting the device to WiFi
• Inverter added to Qilowatt app → Module setup
• Solar inverter data entered → Solar inverter setup
• Price parameters entered → Prices and marginals
• Device connected to WiFi → Connecting the device to WiFi
• Inverter added to Qilowatt app → Module setup
• Solar inverter data entered → Solar inverter setup
• Price parameters entered → Prices and marginals
Step-by-step Guide #
1. Normal #
• PV production first covers the current consumption.
• The surplus is stored in the battery.
• 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).
• When there is no PV, consumption is covered from the battery. If the battery is empty, the deficit is purchased from the grid.
• The surplus is stored in the battery.
• 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).
• When there is no PV, consumption is covered from the battery. If the battery is empty, the deficit is purchased from the grid.
2. Export limit #
• Used during hours with negative electricity prices to avoid costly exports.
• PV production is limited to exactly the amount required for current consumption and battery charging.
• Once the battery is full, PV production is reduced to match the load.
• If consumption exceeds PV production or battery output, the deficit is purchased from the grid.
• PV production is limited to exactly the amount required for current consumption and battery charging.
• Once the battery is full, PV production is reduced to match the load.
• If consumption exceeds PV production or battery output, the deficit is purchased from the grid.
3. Buy #
• Energy is purchased from the grid to charge the battery.
• If PV is available, it is used first.
• Current consumption is also covered by grid energy.
• If PV is available, it is used first.
• Current consumption is also covered by grid energy.
4. Sell #
• The battery is discharged to sell energy to the grid.
• Most inverters prioritize PV production for selling, but if needed, additional energy is taken from the battery.
• Consumption is covered from PV and the battery.
• Most inverters prioritize PV production for selling, but if needed, additional energy is taken from the battery.
• Consumption is covered from PV and the battery.
5. Save battery #
• All energy is purchased from the grid.
• Used, for example, at night when electricity is cheap, to later sell or use during more expensive hours.
• Used, for example, at night when electricity is cheap, to later sell or use during more expensive hours.
6. PV Sell #
• PV first covers consumption.
• The surplus is exported directly to the grid (according to the Maximum export limit).
• If PV production exceeds this limit, some inverter models (e.g. Solis, Solax Ultra, Sofar) direct the excess into the battery.
• The surplus is exported directly to the grid (according to the Maximum export limit).
• If PV production exceeds this limit, some inverter models (e.g. Solis, Solax Ultra, Sofar) direct the excess into the battery.
Result #
The inverter’s operating mode is set according to your chosen strategy.
If it Doesn’t Work #
• If the inverter does not follow commands, check the selected operating mode.
• If the battery does not react, ensure the mode supports battery usage.
• If the problem persists, contact our team: support@qilowatt.eu
• If the battery does not react, ensure the mode supports battery usage.
• If the problem persists, contact our team: support@qilowatt.eu
