solar energy solution

Solar Energy Solution for Sample Configuration

Todamu’s one-stop energy solution for residential applications, small to large commercial building. Providing you a reliable, cost-effective, environmental responsibility, balances performance solution.

Estimated backup duration is a quick reference only, Calculation : usable capacity (kWh) : assumed critical load (kW).

PlanTypical ApplicationInverterBattery (Usable/Total)PV CapacityLoad CoverageEstimated Backup Duration*
R-S (Entry)Apartment / Small home5 kW single-phase hybrid inverter7.2 / 8 kWh LiFePO₄4–6 kWpLighting, router, refrigerator7.2 ÷ 1.2 kW ≈ 6 h
R-M (Mainstream)Townhouse / Small villa8 kW single / two-phase hybrid12.6 / 14 kWh6–8 kWp+1 AC or heat pump12.6 ÷ 2.0 kW ≈ 6.3 h
R-L (High-end)Villa / Multi-load12 kW three-phase hybrid18 / 20 kWh8–12 kWpWhole house key circuits (fridge, security)18 ÷ 3.0 kW ≈ 6 h

*Estimated backup duration is for reference only.

(Covers residential, commercial, off-grid, and solar-storage-charging applications. Parameters can be used directly as templates and support capacity adjustments as needed.)

A: Hybrid Inverter

Built-in MPPT, supports grid-tied/off-grid 

B: LiFePO₄ Lithium Battery

48/100 V class, ≥6000 cycles, DoD 90%

C: Smart Meter/CT

Monitors grid/PV/load,  ATS 

D: EMS Energy Management

APP remote control

Small Commercial Applications(Sample Configurations)

PlanTypical ApplicationPCS / InverterBattery (Usable/Total)PV CapacityTargetNotes
C-30Office / Light commercial30 kW three-phase PCS54/ 60 kWh20-30 kWPeak shaving + Emergency backupSupports 24 h operation ofrefrigerators
C-50Office / Small factory50 kW three-phase PCS90 / 100 kwh40–60kWpDemand management + BackupReserved interface for grid dispatching
C-100Supermarket / Retail / Plant100 kW three-phase PCS180/200 kWh80-120kwpPeak-valley arbitrage + BackupSupports expansion up to 400 kWh
Estimated backup duration is for reference only.

A: Stand-alone PCS

Supporting grid-connected/off-grid modes

B: Stackable Lithum Battery

150–200 V class, liquid cooling optional

C: Smart distribution cabinet

Includes circuit breakers and surge protection modules

D: Cloud Monitoring

Supports peak-off-peak pricing strategy configuration

Off-Grid Systems (Sample Configurations)

**Autonomy days are indicative only, based on typical DoD 90% and ~15% system losses. Adjust per actual critical load and weather.

PlanTypical ApplicationInverterBattery (Usable/Total)PV / Diesel HybridLoad TypeAutonomy Days**
O-5Remote residential5 kW single-phase off-grid14.4 / 16 kWh6 kWp + 5 kVA diesel generatorLighting, appliances, water pump1.5 days (no sunlight)
O-20Small resort20 kW three-phase off-grid72 / 80 kWh20 kWp + 15 kVA diesel generatorAir conditioning, kitchen, entertainment2 days (rainy days)

**Autonomy days indicate backup duration without solar.

A: Off-Grid Inverter

B: LiFePO₄ Battery

C: Diesel Generator

Backup Power

D: Solar Charge Controller

MPPT Efficiency ≥98%

Solar-Storage-Charging(Sample Configurations)

PlanTypical ApplicationInverterBattery (Usable/Total)PV / Diesel HybridCharging PowerCore Functions**
SC-10Home Charging Station10 KW three-phase hybrid18/20 KWh8–10 KWP1 x 7 KW AC ChargerPV priority supply, surplus stored in battery
SC-50Commercial Charging Station50 KW Three-Phase PCS90/100 KWh30–50 KWP2 x 22 KW AC Chargers + 1 x 60 KW DC ChargerPeak-Valley Arbitrage, Supports V2G (Vehicle-to-Grid)

**Estimated backup duration is for reference only.

A: Bidirectional PCS

Supports grid integration of charging stations

B: Battery-level energy storage system

Supports rapid charging/discharging

C: DC fast-charging module

Compatible with CCS/CHAdeMO protocols

D: Intelligent dispatch platform

Optimizes coordination among PV, energy storage, and charging stations

Attentions

  1. Backup duration is calculated based on critical load power; actual values may fluctuate due to factors such as system efficiency and temperature.
  2. Self-sufficiency days refer to the number of days the energy storage system can support loads in a fully off-grid state.
  3. All solutions support modular expansion, allowing batteries or PV capacity to be added as needed.

Estimated backup duration is a quick reference only, Calculation : usable capacity (kWh) : assumed critical load (kW).

PlanTypical ApplicationInverterBattery (Usable/Total)PV CapacityLoad CoverageEstimated Backup Duration*
R-S (Entry)Apartment / Small home5 kW single-phase hybrid inverter7.2 / 8 kWh LiFePO₄4–6 kWpLighting, router, refrigerator7.2 ÷ 1.2 kW ≈ 6 h
R-M (Mainstream)Townhouse / Small villa8 kW single / two-phase hybrid12.6 / 14 kWh6–8 kWp+1 AC or heat pump12.6 ÷ 2.0 kW ≈ 6.3 h
R-L (High-end)Villa / Multi-load12 kW three-phase hybrid18 / 20 kWh8–12 kWpWhole house key circuits (fridge, security)18 ÷ 3.0 kW ≈ 6 h

*Estimated backup duration is for reference only.

(Covers residential, commercial, off-grid, and solar-storage-charging applications. Parameters can be used directly as templates and support capacity adjustments as needed.)

A: Hybrid Inverter

Built-in MPPT, supports grid-tied/off-grid 

B: LiFePO₄ Lithium Battery

48/100 V class, ≥6000 cycles, DoD 90%

C: Smart Meter/CT

Monitors grid/PV/load,  ATS 

D: EMS Energy Management

APP remote control

Small Commercial Applications(Sample Configurations)

PlanTypical ApplicationPCS / InverterBattery (Usable/Total)PV CapacityTargetNotes
C-30Office / Light commercial30 kW three-phase PCS54/ 60 kWh20-30 kWPeak shaving + Emergency backupSupports 24 h operation ofrefrigerators
C-50Office / Small factory50 kW three-phase PCS90 / 100 kwh40–60kWpDemand management + BackupReserved interface for grid dispatching
C-100Supermarket / Retail / Plant100 kW three-phase PCS180/200 kWh80-120kwpPeak-valley arbitrage + BackupSupports expansion up to 400 kWh
Estimated backup duration is for reference only.

A: Stand-alone PCS

Supporting grid-connected/off-grid modes

B: Stackable Lithum Battery

150–200 V class, liquid cooling optional

C: Smart distribution cabinet

Includes circuit breakers and surge protection modules

D: Cloud Monitoring

Supports peak-off-peak pricing strategy configuration

Off-Grid Systems (Sample Configurations)

**Autonomy days are indicative only, based on typical DoD 90% and ~15% system losses. Adjust per actual critical load and weather.

PlanTypical ApplicationInverterBattery (Usable/Total)PV / Diesel HybridLoad TypeAutonomy Days**
O-5Remote residential5 kW single-phase off-grid14.4 / 16 kWh6 kWp + 5 kVA diesel generatorLighting, appliances, water pump1.5 days (no sunlight)
O-20Small resort20 kW three-phase off-grid72 / 80 kWh20 kWp + 15 kVA diesel generatorAir conditioning, kitchen, entertainment2 days (rainy days)

**Autonomy days indicate backup duration without solar.

A: Off-Grid Inverter

B: LiFePO₄ Battery

C: Diesel Generator

Backup Power

D: Solar Charge Controller

MPPT Efficiency ≥98%

Solar-Storage-Charging(Sample Configurations)

PlanTypical ApplicationInverterBattery (Usable/Total)PV / Diesel HybridCharging PowerCore Functions**
SC-10Home Charging Station10 KW three-phase hybrid18/20 KWh8–10 KWP1 x 7 KW AC ChargerPV priority supply, surplus stored in battery
SC-50Commercial Charging Station50 KW Three-Phase PCS90/100 KWh30–50 KWP2 x 22 KW AC Chargers + 1 x 60 KW DC ChargerPeak-Valley Arbitrage, Supports V2G (Vehicle-to-Grid)

**Estimated backup duration is for reference only.

A: Bidirectional PCS

Supports grid integration of charging stations

B: Battery-level energy storage system

Supports rapid charging/discharging

C: DC fast-charging module

Compatible with CCS/CHAdeMO protocols

D: Intelligent dispatch platform

Optimizes coordination among PV, energy storage, and charging stations

Attentions

  1. Backup duration is calculated based on critical load power; actual values may fluctuate due to factors such as system efficiency and temperature.
  2. Self-sufficiency days refer to the number of days the energy storage system can support loads in a fully off-grid state.
  3. All solutions support modular expansion, allowing batteries or PV capacity to be added as needed.