Live data

Data from the temporary test rig near Prague (as from 2022-07-28)

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Test rig specifications

As of July 2022, the installation uses:

• Uninsulated IBC tank with 1 cubic metre water capacity
• Two collectors with 3.7 m2 total aperture area
• External tank location (overnight heat loss)
• Panels pitched for winter collection

Graph explanation

The initial "teeth" in yellow show the panel catching some morning sunlight, with modulating pump speeds to prevent short-cycling. An optical sensor mounted in an inverse trap monitors panel filling status.

Location

The test rig is near Prague:

• Large trees to the immediate east
• 1,670 hours annual sunlight average
• Summer temperatures approaching 40 C
• Winter temperatures reaching -20 C

Data collection

Sensor data transmits via RS485 protocol. Logging occurs about every minute with CSV uploads to the server for browser-based graphing.