Pyranometer KNX PY from Elsner Elektronik mounted on a mast in front of a photovoltaic systemPyranometer KNX PY from Elsner Elektronik mounted on a mast in front of a photovoltaic system

Boost PV performance with a KNX pyranometer

News of 20 March 2025

KNX pyranometer for photovoltaic systems – more control, more yield

In the planning and installation of photovoltaic systems, an accurate yield forecast and performance monitoring are crucial. Deviations between actual global irradiance and predicted performance often lead to losses in efficiency.

A KNX pyranometer such as the KNX PY accurately measures the actual global irradiance and transmits the values directly to the KNX control system. This allows yield fluctuations to be detected immediately and automatically compensated for – for maximum efficiency and optimal performance monitoring in real time.

Find out more about our KNX pyranometer here!

Elsner Pyranometer in our Shop
KNX PY

The advantages at a glance

  • Exact measurement of global irradiance in real time
  • Direct integration into KNX systems – no additional hardware required
  • Supply of the basic values for optimising PV performance – for better control and higher yields
  • Easy configuration and evaluation via KNX visualisation
  • Additional benefit: use for even more precise shading control
Elsner employee Frederik Riedel with the pyranometer KNX PY on the roof of the Elsner company headquartersElsner employee Frederik Riedel with the pyranometer KNX PY on the roof of the Elsner company headquarters
Specialist article

Precise data for exact yield control

A KNX pyranometer provides exact data on global irradiance – for a realistic yield forecast and targeted efficiency increases. Learn more in our specialist article!

Pyranometer KNX PY from Elsner ElektronikPyranometer KNX PY from Elsner Elektronik
Specialist articles

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Legal guarantee

Harmonised EU legal guarantee notice

Minimum two-year legal guarantee protection for goods sold in the European Union.

Consumers can claim their rights under the legal guarantee of conformity, for example if goods:

  • do not match the description;
  • do not function as intended.

Sellers are liable for any lack of conformity which existed when the goods were delivered, and which becomes apparent within the legal guarantee period. Sellers in such a situation are required to offer:

  • free repair or free replacement;
  • in some cases, a price reduction or full reimbursement.

Some countries have a longer legal guarantee period. For second-hand goods, a shorter period may apply, but not less than one year.

What to do if you receive non-conforming goods:

  1. Contact the seller as soon as possible to report the issue;
  2. Provide proof of purchase, such as a receipt, invoice, or bank statement.

Sellers and producers may also offer commercial guarantees, which apply independently from the legal guarantee. For example, you may see this GARAN label representing a commercial guarantee of durability offered by the producer at no additional cost and covering the entire good.

For more information on your rights in a specific country, visit the page below or ask the seller. https://europa.eu/youreurope/guarantees