First pyranometer to be compliant to IEC 61724-1 requirements

09.03.2017
The SR30 pyranometer was released in January. It is the first one to meet the revised IEC 61724-1 standards fpr PV system performance monitoring. (Photo: Hukseflux)
The SR30 pyranometer was released in January. It is the first one to meet the revised IEC 61724-1 standards fpr PV system performance monitoring. (Photo: Hukseflux)

The IEC 61724-1 standard for PV system performance monitoring has been revised. A information, that is relevant for system owners, O&M managers, compliance officers, investors and suppliers. The SR30 pyranometer by Hukseflux is the first thermal Sensor to meet the new requirements.

The first edition of “IEC 61724-1: Photovoltaic system performance monitoring – Guidelines for measurement”, data exchange and analysis, dates from 2008. The new 2017 version of the standard is fundamentally different from the 2008 version. It not only defines the measuring system components and procedures (as in the 2008 version), but also aims to keep measurement errors within specified limits. This is done by establishing accuracy classes for monitoring systems.

The new standard includes:

  • 3 accuracy classes:
    A, B and C, for monitoring systems, to be used in conformity declarations
  • accuracy requirements for monitoring equipment per class
  • required quality checks (i.e. calibration and maintenance) per class
  • recommended minimum number of instruments used as a function of the PV system scale

SR30 pyranometer, released by the Hukseflux Thermal Sensors B.V. in January 2017, is the first pyranometer meeting Class A requirements of the new IEC 61724-1 standard. The device measures solar radiation employing a state-of-the-art thermopile sensor with black coated surface and two domes. The outer pyranometer dome is heated by ventilating the area between the inner and outer dome using RVH™ (Recirculating Ventilation and Heating-technology).

The RVH™-techonology, developed by Hukseflux, suppresses dew and frost deposition and is as effective as traditional ventilation systems, without the maintenance hassle and large footprint. Domes free of dew and frost ensure high data availability. In addition to the highest measurement accuracy and data availability, SR30 pyranometer offers remote diagnostics and low total cost of ownership for PV system performance monitoring.

Hukseflux / Philipp Kronsbein

Similar Entries

A recent order for wind turbine condition monitoring systems by Energias de Portugal Renewables North America (EDPR) has brought the total number of systems sold by Brüel & Kjær Vibro to over 15,000! Wind turbine coverage in the world is rapidly expanding, as we already topped 10,000 systems in 2015. EDPR, one of several owners and operators in North America using the Brüel & Kjær Vibro system, is the third largest producer of wind energy in USA with more than 2,300 wind turbines.

The PI system used by Juwi to monitor its renewable energy parks. (Photo: Juwi)

To analyze the performance of renewable energy plants coming from different manufacturers, non-proprietary software is needed. With the help of an independent software tool for monitoring and analysis of different plant types, the Juwi group could improve its plant management and increase efficiency – a case study.

The “Date” solar farm has a total capacity of 10.32 MW and an annual electricity generation of 11 Mill. kWh. (Photo: skytron energy)

The 10.32-MW-project “Date” on the island of Hokkaido in Japan has been equipped with a system for monitoring, control and remote supervision by skytron energy. To cope with increasing demand in Japan and ensure timely local support there, skytron energy also will open a subsidiary in Tokyo in the first half of this year.

A new version of the PV monitoring software PVGuard has been published by Skytron Energy. The new version focuses on managing multiple PV plants at once.