SMA HM-20 User Manual

13 Visualization of the energy management
SMA Solar Technology AG
Operating manualHM-20-BE-en-19100
The expected average yield results from a manual specification that you can make based on your system's location
data. Depending on the orientation and the irradiation fluctuations between the individual years, there might be
considerably larger deviations in contrast to the expected average yield.
Tab Content
Total yield In the diagram:
• Yield development over the previous years
• Average yield development over the previous years
• Average expected yield
In the table:
• Yield values (kWh/kWp) of the previous years and the current year per month as well
as added up.
• Mean values per month
• Proportion year (can only be displayed once a full year has passed)
• Expected yield
Specific system yield In the diagram:
The specific system yield is a key figure for describing the quality of a system. System-specific
factors such as location, tilt angle, shading, module and inverter types are taken into consid-
eration to calculate the specific system yield. The specific system yield enables you to com-
pare various systems at various locations.
• Development of the specific system yield of each previous year
• Average development of the specific system yield of the previous years
• Average expected yield
In the table:
• Specific system yield (kWh/kWp) of the previous years and the current year per month
as well as added up.
• Mean values per month
• Proportion year (can only be displayed once a full year has passed)
• Expected yield
Calculation of the expected yield
The button Edit prediction values takes you directly to the menu where you enter the specific annual yield and can
have the expected annual yield calculated (see Section10.4.9, page48).
The Predicted annual yield of the PV system is calculated from the specific annual yield (kWh/kWp) at the PV
system location and the PV system power (kWp).
You can obtain the specific annual yield for your PV system location from irradiation maps. Local conditions such as
shading or the system orientation are not taken into account. You can obtain the nominal system power from your
installer.
The Monthly distribution of the expected annual yield shows how the expected annual yield is distributed
throughout the year. Given complete information about the system location, SunnyPortal can suggest a distribution.
For this, click on the button [Suggest a monthly distribution].
You may also enter a percentage value for each month (the sum must result in 100%).
You can enter or change all data regarding your system in the Configuration menu on the PV system properties
page.

SMA HM-20 Specifications

General

Brand	SMA
Model	HM-20
Category	Measuring Instruments
Language	English