I'm trying to determine TDV savings from charging a battery at night and discharging between 5pm and 8pm. However, I am getting a worse TDV value the model has the battery vs when I don't have the battery. The opposite of what I expected.
I suspect the inefficiencies of my battery explain this, but I wanted to check by modeling a 100% efficient battery to make sure I didn't do something wrong. I think I made the battery 100% efficient, but I'm still getting a worse TDV value with the battery. Can anyone spot something I did wrong? Or maybe another object I should check in the IDF file that I overlooked?
ElectricLoadCenter:Inverter:LookUpTable,
Storage Inverter, !- Name
, !- Availability Schedule Name
, !- Zone Name
0.00, !- Radiative Fraction
14000, !- Rated Maximum Continuous Output Power {W}
0.0, !- Night Tare Loss Power {W}
368, !- Nominal Voltage Input {V}
1, !- Efficiency at 10% Power and Nominal Voltage
1, !- Efficiency at 20% Power and Nominal Voltage
1, !- Efficiency at 30% Power and Nominal Voltage
1, !- Efficiency at 50% Power and Nominal Voltage
1, !- Efficiency at 75% Power and Nominal Voltage
1; !- Efficiency at 100% Power and Nominal Voltage
ElectricLoadCenter:Storage:Simple,
Battery, !- Name
, !- Availability Schedule Name
, !- Zone Name
0.0, !- Radiative Fraction for Zone Heat Gains
1.0, !- Nominal Energetic Efficiency for Charging
1.0, !- Nominal Discharging Energetic Efficiency
1.0E12, !- Maximum Storage Capacity {J}
200000, !- Maximum Power for Discharging {W}
200000, !- Maximum Power for Charging {W}
1.0E12; !- Initial State of Charge {J}
ElectricLoadCenter:Distribution,
Grid Battery Load Center,!- Name
, !- Generator List Name
, !- Generator Operation Scheme Type
0, !- Generator Demand Limit Scheme Purchased Electric Demand Limit {W}
, !- Generator Track Schedule Name Scheme Schedule Name
, !- Generator Track Meter Scheme Meter Name
DirectCurrentWithInverterDCStorage, !- Electrical Buss Type
Storage Inverter, !- Inverter Name
Battery, !- Electrical Storage Object Name
, !- Transformer Object Name
TrackChargeDischargeSchedules, !- Storage Operation Scheme
, !- Storage Control Track Meter Name
Grid Charge Converter, !- Storage Converter Object Name
0.96, !- Maximum Storage State of Charge Fraction
0.4, !- Minimum Storage State of Charge Fraction
500000, !- Design Storage Control Charge Power {W}
Charge Schedule, !- Storage Charge Power Fraction Schedule Name
500000, !- Design Storage Control Discharge Power {W}
Discharge Schedule; !- Storage Discharge Power Fraction Schedule Name
ElectricLoadCenter:Storage:Converter,
Grid Charge Converter, !- Name
, !- Availability Schedule Name
SimpleFixed, !- Power Conversion Efficiency Method
1.0, !- Simple Fixed Efficiency
, !- Design Maximum Continuous Input Power {W}
, !- Efficiency Function of Power Curve Name
0, !- Ancillary Power Consumed In Standby {W}
, !- Zone Name
0.00; !- Radiative Fraction
Schedule:Compact,
Charge Schedule, !- Name
Fraction, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: Weekdays SummerDesignDay, !- Field 2
Until: 5:00, !- Field 3
1.0, !- Field 4
Until: 24:00, !- Field 5
0.0, !- Field 6
For: Saturday WinterDesignDay, !- Field 9
Until: 5:00, !- Field 10
1.0, !- Field 11
Until: 24:00, !- Field 14
0.0, !- Field 15
For: AllOtherDays, !- Field 16
Until: 24:00, !- Field 17
1.0; !- Field 18
Schedule:Compact,
Discharge Schedule, !- Name
Fraction, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: Weekdays SummerDesignDay, !- Field 2
Until: 17:00, !- Field 3
0.0, !- Field 4
Until: 20:00, !- Field 5
1.0, !- Field 6
Until: 24:00, !- Field 7
0.0, !- Field 8
For: Saturday WinterDesignDay, !- Field 9
Until: 17:00, !- Field 10
0.0, !- Field 11
Until: 20:00, !- Field 12
1.0, !- Field 13
Until: 24:00, !- Field 14
0.0, !- Field 15
For: AllOtherDays, !- Field 16
Until: 24:00, !- Field 17
0.0; !- Field 18
