A Practical Guide from Yohoo Elec
As renewable energy and storage technologies continue to integrate, the inverter has become the “brain” of residential energy storage systems. Choosing the right operating mode directly affects energy efficiency, power reliability, and economic returns. At Yohoo Elec, we design inverters that support multiple intelligent working modes, empowering homeowners to tailor their energy usage based on real-life scenarios.
This article provides a practical guide to selecting the optimal operating mode for your Yohoo Elec energy storage inverter—helping you maximize the value of your solar + storage system.
Before diving into mode selection, it’s important to understand the pain points that residential solar systems often face:
Wasted Energy: Solar production is intermittent and often doesn’t align with consumption patterns. During peak sunshine hours, excess energy may be wasted or curtailed if not stored.
Variable Earnings: Feed-in tariffs or market-based pricing make solar returns uncertain.
Power Outages: Grid-tied systems stop working during outages due to anti-islanding protection—leaving homes without power when it’s needed most.
Yohoo Elec’s energy storage systems are designed to solve these issues across a range of scenarios:
Maximizing Solar Self-Consumption
Excess solar energy is stored in batteries and discharged when sunlight is insufficient, reducing dependence on the grid.
Time-of-Use (TOU) Optimization
Charge batteries during off-peak hours when electricity is cheap, and discharge during peak times to reduce your electricity bill.
Emergency Backup Power
In the event of a power outage, the system automatically switches to off-grid mode to keep critical loads powered.
Export Limitation / Anti-Backfeed
Dynamically controls the PV output to prevent electricity from being fed back into the grid, complying with local regulations or grid limitations.
Our smart inverters support both grid-tied and off-grid operation. Within grid-tied mode, users can choose from the following:
Logic: Solar energy is used to power household loads first. Surplus solar charges the battery. If the battery is full and load demand is low, excess power is fed to the grid.
Best For: Households aiming to reduce grid dependency and maximize solar usage.
Priority: Load > Battery > Grid
Logic: Solar energy is first used to charge the battery. Remaining solar is directed to loads or the grid.
Best For: Backup power users or those leveraging time-of-use pricing (e.g., charging at night, discharging during expensive daytime hours).
Priority: Battery > Load > Grid
Logic: Solar power is fed to the grid first.
Best For: Participating in grid support or virtual power plant (VPP) programs.
Priority: Load > Grid > Battery
When the grid goes down, Yohoo Elec inverters automatically switch to off-grid operation. This ensures uninterrupted power for essential appliances, such as refrigerators, lighting, medical devices, and more.
Recommended Mode: Load Priority Mode + Seamless Switching
Technical Advantage: Switches to off-grid mode within 10ms to ensure zero interruption for critical devices.
Recommended Mode: Battery Priority Mode + Scheduled Charging/Discharging
Technical Advantage: Use the inverter's scheduling function to charge during off-peak hours and discharge during peak hours, reducing electricity costs.
Recommended Mode: Grid Priority Mode + VPP Integration
Technical Advantage: Feed energy into the grid on demand, extend battery lifespan, and even generate additional income by supporting grid stability.
Choosing the right working mode for your residential storage system requires a careful balance of energy needs, grid conditions, and economic goals. Yohoo Elec’s smart inverters offer flexible configuration options for every scenario—from self-consumption and emergency backup to peak shaving and virtual grid services.
As the energy transition accelerates, Yohoo Elec continues to lead with innovative solutions that transform solar + storage systems from functional tools into intelligent power management platforms.
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