CONNECT YOUR SYSTEM TO SOLARHEATDATA.EU
Below you will find information on how your solar heating system can be connected to SolarHeatData.eu.
Who can join?
SolarHeatingData.eu and solvarmedata.dk includes mainly solar district heating systems – often established in connection to a local CHP plant. However, all large scale systems can be connected if they provide the required general information and data feed, which is used for displaying the production, perform the calculations continuously etc. (See requirements below.)
Who is behind this?
The Solar Group under the Danish District Heating Association is in charge of both solvarmedata.dk and SolarHeatData.eu. Operation and maintenance of the website is handled by the web agency easynet.
What is the price for being connected?
The price for registration, is a one-time fee of 550 € (excl. VAT) invoiced by easynet ApS after the solar system is connected.
How to connect your system
The procedure for registration is:
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Click on ”Create new solar heating system” below and write your request in a mail to easynet. Afterwards you will be receive your own login and a guide on how to connect your system to the website.
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Log on and complete the registration form with basic general data about the system. If your solar heating system later is expanded with more collectors, these can then be added as an additional “part 2”.
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Create a continuous data feed in accordance with the specification below and upload the data to the FTP server you automatically receive an address for when registering.
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When the site receives active data from you, the solar heating system becomes visible on SolarHeatData.eu.
Requirements for your data feed:
Your data feed should contain the following values:
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PARAMETERS
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UNIT
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NUMBER OF DECIMALS
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Current solar heat production (measured thermal power on the secondary side of the heat exchanger)
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MW
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3
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Current solar radiation in W/m2 (Total solar radiation on the solar collector surface)
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W/m2
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2
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Ambient (outdoor) temperature
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°C
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1
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Diffuse radiation on the collector surface (if possible)
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W/m2
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0
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Direct radiation on the solar surface (if possible[1])
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W/m2
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0
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The outlet temperature at the heat exchanger for the fluid pumped towards the solar collectors (i.e. primary side)
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°C
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1
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The inlet temperature at the heat exchanger for the fluid coming from on the solar collectors (primary side)
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°C
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1
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Flow in the solar collector loop (i.e. primary side of the heat exchanger)
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m3/t
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1
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Thermal power measured on the primary side of the heat exchanger
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MW
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3
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The outlet temperature at the heat exchanger secondary side (i.e. the heated water)
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°C
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1
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The inlet temperature at the heat exchanger secondary side (i.e. the water to be heated by solar heat)
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°C
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1
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The flow rate at secondary side of the heat exchanger (water side)
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m3/t
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1
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Total heat production at the plant (in order to calculate the solar fraction)
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MW
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3
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Use ',' (comma) as decimal separator. The values must be separated by semi-colons. It is important that the values are lined up in the order they are listed above.
The most common solution is that your solar system upload a text file on an FTP server every 5 minutes, with the current values. The file should contain only one line with the above data, e.g.
2,055;650;12,3;250;400;…
if
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the current solar heat production is 2.055 MW (i.e. approx. 2 MW)
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the current solar radiation is 650 W/m2
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the outdoor air temperature is 12.3 °C
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the diffuse radiation on the solar collector surface is 250 W/m2
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the direct radiation on solar panel surface is 400 W/m2
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...etc.
If not all the values are available, it is important that the space for the missing values are left empty and the semi-colons remain. This means that if 'Diffuse radiation on the solar collector surface' cannot be delivered, the above example will look like this:
2,055;650;12,3;;400;…
This way the data feed always contains 12 semi-colons per line.
[1] Mandatory for concentrating solar plants.
Send us an email and start the process of connecting to SolarHeatData. Click on the button below and send us your plant name and contact information.
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