Photovoltaic
Battery
Hot Water
Space Heating
Electric Vehicles
Economics

Module “Basic” – Photovoltaic and Consumption

Input parameters:

Simulation location
Electricity consumption per year
User profile (private household, general trade, …)
PV power
PV orientation
PV slope
Cell technology
Mounting type of the PV system (rooftop installation or building-integrated)
Efficiency and standby consumption of the inverter

Results:

Energy yield
Energy drawn from the grid
Feed-in into grid
Self-consumption
Self-sufficiency

Module “Battery”

Input parameters:

Installed battery capacity
Max. allowed depth of discharge (DOD)
Self-discharge
Life span of batteries (length of time and number of cycles)
Max. charge and discharge power of battery inverter
Round-trip efficiency of battery inverter
Self-consumption of battery inverter

Results:

PV self-consumption via battery
Battery exchange interval
Self-consumption with battery
Self-sufficiency with battery
Battery system losses

Module “Hot Water”

Input parameters:

Type of electric hot water generation (heating rod, heat pump, supporting an existing heating system, …)
Hot water user profile
Power and stand-by consumption of hot water device
Efficiency (heating rod) or coefficient of performance (heat pump), respectively
Boiler volume
Max. allowed water temperature
Water temperature at boiler entry
Guaranteed temperature
Boiler losses
Type of control (temperature controlled, PV controlled, timer switch)

Results:

Consumption for hot water generation
PV self-consumption for hot water generation
PV coverage of hot water generation
Hot water system losses
Analysis of system design (failures, under- or oversizing, …)

Module “Space Heating”

Input parameters:

Type of electric space heating (electric heating, heat pump)
Power and stand-by consumption of heater
Efficiency (electric heating) or coefficient of performance (heat pump), respectively
Inlet temperature (heat pump)
Building parameters (u-value, size, outer surfaces, window surfaces, ventilation, …)
Desired room temperature (day, night, incl. hysteresis)
External heat sources (waste heat from electric consumption, heat water generation, people, …)
Type of control (temperature controlled, PV controlled, timer switch)

Results:

Consumption for space heating
PV self-consumption for space heating
PV coverage of space heating
Space heating system losses
Heating period
Analysis of system design (failures, under- or oversizing, …)

Module “Electric Vehicles”

Input parameters:

Power and stand-by consumption of wallbox (charger)
Parameters of electric vehicle (charging power, battery capacity, consumption / 100 km, …)
Usage of electric vehicle during the week (time profile, km profile)
Type of control (PV controlled, timer switch)

Results:

Consumption for electric vehicle
PV self-consumption for electric vehicle
PV coverage of electric vehicle
Wallbox losses
Analysis of system design (failures, under- or oversizing,…)

Module “Economics”

Input parameters:

Calculation period
Expected inflation and ROI
Costs of all components
Subsidies, if any
Expected life span of the components
Maintenance costs of the system components
Electricity costs
Feed-in tariff
Expected development of all costs and tariffs over the calculation period

Results:

List of one-off investment costs and subsidies
List of running costs (maintenance, electricity consumption from the grid) and revenue (feed-in)
Electricity production costs
Net present value
Graphical analysis of the net present value over the calculation period