Product Review: Kipp & Zonen’s ‘RaZON+’ solar radiation system minimises soiling

Facebook
Twitter
LinkedIn
Reddit
Email
RaZON+ uses a new and unique design of integrated Smart pyrheliometer and shaded Smart pyranometer with quartz diffuser that both meet ISO 9060 requirements.

Kipp & Zonen is launching a new solar radiation measurement solution at Intersolar Europe 2016. The ‘RaZON+’ is said to be an all-in-one system that accurately measures both direct normal irradiance (DNI) and diffuse horizontal irradiance (DHI) from the sun and sky, enabling it to provide very reliable values of global horizontal solar irradiance (GHI) and sunshine duration. This new and affordable system is claimed to help solar energy projects, PV as well as CSP, to prospect for new locations, calculate performance ratios, maximise operating efficiency, schedule maintenance and monitor plant performance; all with a minimal soiling effect.

Problem

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Obtaining accurate and consistent solar radiation measurements in unattended in remote locations ahead of potential site selection for PV power plant projects remains challenging due to the chances of pyranometer soiling. 

Solution

RaZON+ uses a new and unique design of integrated Smart pyrheliometer and shaded Smart pyranometer with quartz diffuser that both meet ISO 9060 requirements. The innovative features of the pyrheliometer minimise the effects of soiling when operated unattended in remote locations, without compromising the high accuracy of the instrument. RaZON+ measures the diffuse horizontal solar irradiance with a shaded Smart pyranometer mounted on top of the housing. Kipp & Zonen chooses to measure DNI and DHI and calculate GHI, as this minimises the effect of thermal offsets in the pyranometer and provides an accurate and reliable measurement with a much lower uncertainty. RaZON+ capabilities can easily be extended with the connection of a compact weather station or other ‘Modbus’ sensors.

Applications

Solar radiation measurement.

Platform

RaZON+ uses its GPS receiver to track the sun from dawn to dusk and automatically stores measurement data from the integrated pyrheliometer and shaded pyranometer. Integrated data logger and the Smart radiometers with internal temperature correction, accurate stored and real time data, is available. The information is accessible via Ethernet and RS485 ports and includes DNI, DHI, GHI, sunshine duration, kWh/m2, sun position, GPS time and system status.vRaZON+ offers a complete web interface with data, graphs and status information, which can also be checked on the spot with a smartphone, tablet or laptop via its integrated Wi-Fi connection.

Availability

June 2016 onwards.

Read Next

September 17, 2025
Spanish renewables developer and operator Acciona Energía has commissioned its 412MWp Juna solar PV plant in Kawani village in the western state of Rajasthan. 
September 17, 2025
Nexamp has secured US$350 million through a long-term financing facility to expand its 6GW utility-scale solar and battery storage pipeline in the US. 
September 17, 2025
QatarEnergy has signed an EPC agreement with Samsung C&T for its 2GW Dukhan project. 
September 16, 2025
Sunotec has launched Sunotec Nordic to spearhead solar and hybrid renewable project development across the Nordic region.
September 16, 2025
IB Solar is investing INR30 billion (US$340 million) in a 4GW TOPCon solar cell and module manufacturing plant in Jewar, Uttar Pradesh.
September 15, 2025
Sunrun has priced a securitisation of leases and power purchase agreements, taking its non-recourse debt capital raised in Q3 above US$1.5 billion. 

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA