Overview of the Energy Management Functions
Description | Energy Planner | Energy Maximizer | Sunny Home Manager 2.0 | |
|---|---|---|---|---|
Increased self-consumption | ||||
Increased self-consumption | System optimization based on PV generation and loads and the control of batteries and inverters to increase self-consumption. | (✓) | ✓ | ✓ |
Optimization of the battery life | Keeps the battery at a moderate state of charge during the day and fully charges it towards the end of the day to ensure there is sufficient energy available for the evening and to extend the battery life at the same time. | - | ✓ | - |
Oversizing on PV side | Takes into account cases when more PV power (DC) is connected to the hybrid inverter than it can convert on the AC side. The surplus energy generated as a result is put to good use by being used to charge the battery. | - | ✓ | - |
Peak load shaving | ||||
Time-based limitations | Reduction of the maximum grid-supplied power through battery discharges or load reductions. | (✓) | - | - |
Capacity forecast (adaptive) | The system analyses the load profile and automatically raises the load peak limit when it is exceeded due to unexpectedly high loads. | (✓) | - | (✓) |
Capacity forecast (predictive) | The system determines the necessary energy requirement and increases the backup reserve when high load peaks are expected. | - | ✓ | - |
Multiuse | The system combines peak load shaving and increased self-consumption within defined limits. | (✓) | ✓ | (✓) |
Reduced charging during load peaks | The system reduces the charging power for electric vehicles at times of high loads and increases the power automatically as soon as this is possible. | Scheduled | ✓ | (✓) |
Emergency power supply and battery backup | ||||
Emergency power supply and battery backup | The system reserves a configurable portion of the battery capacity to guarantee the electricity supply in the event of a power outage. | ✓ | ✓ | - |
System optimization | ||||
Forecast-based optimization | Takes into consideration tariffs, PV generation, load peaks, temperature, state of charge and consumption data for planning the energy use. | - | ✓ | ✓ |
Charging with power from the grid | The energy management system charges the battery with power from the utility grid at an opportune time to reduce energy costs. | (✓) | ✓ | ✓ |
Grid feed-in | Feeds electricity into the utility grid at optimum times to improve revenue. | (✓) | ✓ | - |
Power reduction in the event of negative electricity tariffs | Stops grid feed-in in the event of negative tariffs, plans the use of energy in advance, controls loads automatically and avoids additional costs. | − | ✓ | - |
Parallel operation of multiple battery inverters and hybrid inverters (with battery) | Automatic balancing of the states of charge for multiple parallel-operating battery inverters and hybrid inverters with connected batteries. | ✓ | ✓ | - |
Supported electricity tariffs | ||||
Dynamic electricity tariffs | Setting and monitoring dynamic electricity prices and optimizing systems based on the dynamic electricity tariff (also includes the StromWallet Dynamic Pro tariff from LichtBlick in Germany). | - | ✓ | ✓ |
Time-dependent tariff | Enables flexible tariff configurations based on changing electricity prices. | - | ✓ | ✓ |
Fixed-price tariff | Enables predictive optimization to increase savings. With fixed tariffs, the focus is on self-consumption. | - | ✓ | ✓ |
LichtBlick (energy provider in Germany) | Uses tariff information from LichtBlick's "StromWallet Dynamic Pro" tariff for forecast-based energy use planning | - | ✓ | ✓ |
Dynamic grid charges | Draws electricity from the grid at times of low grid charges, based on individually configured grid charges, to increase savings. | ✓ | ✓ | ✓ |
Monitoring and analysis | ||||
Grid-supplied power and grid feed-in | Display of grid-supplied power and grid feed-in in Sunny Portal and in the SMA Energy App. | ✓ | ✓ | ✓ |
PV generation and self-consumption | Display of PV generation and self-consumption in Sunny Portal and in the SMA Energy App. | ✓ | ✓ | ✓ |
History of previous PV generation | Display of the history of previous generation in Sunny Portal or in the SMA Energy App. | ✓ | ✓ | ✓ |
Generation, consumption and state of charge forecasts | Display of forecast data in Sunny Portal or in the SMA Energy App. | - | ✓ | (✓) |
Electric vehicle charging | ||||
Solar | Only charges the electric vehicle with surplus PV energy. | ✓ | ✓ | ✓ |
Smart | Charges the electric vehicle up to the desired state of charge prior to journey begin based on tariffs and PV availability. | - | ✓ | - |
Fast charging | Charges the electric vehicle with the maximum available charging power. | ✓ | ✓ | ✓ |
Automatic charging | Starts the charging process automatically in accordance with the selected standard charging mode. | ✓ | ✓ | - |
Charging stability | Guarantees a stable charging process by using electricity from the grid when solar power is low. | ✓ | ✓ | (✓) |
Battery boost | Releases stored energy from the battery for charging the electric vehicle or prevents discharging. | - | Scheduled | - |
Automatic phase switching | Switches between single- and three-phase charging automatically depending on the configured operating mode and available power. | ✓ | ✓ | ✓ |
Multiple charging station support | Enables the use of multiple charging stations. | ✓ | ✓ | ✓ |
Permanent locking | Keeps the charging cable locked on the charging device, with an option for permanent locking or permanent unlocking. | ✓ | ✓ | ✓ |
Settings via | ||||
User interface powered by ennexOS | The settings can be made locally via the System Manager user interface integrated into the system. | ✓ | - | - |
Sunny Portal powered by ennexOS | The settings can be made via Sunny Portal. | ✓ | ✓ | ✓ |
SMA Energy App | The settings can be made via the SMA Energy App. | (✓) | ✓ | (✓) |
SMA 360° App | The settings can be made via the SMA 360° App. | - | ✓ | - |
Additional energy services | ||||
Direct selling | Markets grid feed-in from systems over 100 kWp directly on the energy market. | ✓ | Scheduled | - |
Modbus | ||||
Control via Modbus (direct) | Third-party systems can control SMA systems via Modbus at different control levels. | ✓ | ✓ | (✓) |
Control via Modbus (indirect) | Third-party systems can control SMA systems via SMA Energy Management via Modbus at different control levels. | ✓ | ✓ | - |
Technical requirements (in Germany) | ||||
Limitation of feed-in power in accordance with grid capacity (§9 Renewable Energy Sources Act (EEG) / Germany) | The system supports §9 via an EEBUS connection and enables the grid operator to control the feed-in power of systems via remote access when necessary (e.g., in the event of imminent grid bottlenecks) and to call up the current actual grid feed-in value. | (✓) | (✓) | (✓) |
General active power limitation (§9 Renewable Energy Sources Act (EEG) / Germany) | The system supports §9 via an EEBUS connection and reduces the feed-in power, either to a fixed 60% limit or dynamically via an intelligent metering system (iMSys), based on grid operator specifications. | (✓) | (✓) | (✓) |
Reduction of grid-supplied power in the event of a grid overload (§14a German Energy Act (EnWG) / Germany) | The system supports §14a via digital inputs or EEBUS connection and reduces the grid-supplied power based on grid operator specifications. | (✓) | (✓) | (✓) |
- | (✓) | ✓ |