Maximum accuracy for the entire sensor’s life
The measurement of the performance of renewable energy plants begins by measuring the energy from a natural source, be it sun or wind.
By comparing the energy generated from natural sources with the energy produced by the photovoltaic or wind plant, you can check the actual production yield from renewable energy and you can compare the real and the theoretical yield expected during the design phase, monitoring the ROI.
How we produce our measurement sensors
Our sensors include a precision component that can guarantee the linearity in measurement, as well as precision, and reproducibility [V.I.M. 3rd Edition] in any expected temperature (-30° ÷ +88°C) thanks to circuits that compensate the signal at every variation in the temperature of the cell.
Each cell is subject to a unique treatment which gives them good stability in measurements over time.
The use of high quality materials has allowed the sensors to pass aging tests according to the applicable parameters of the IEC EN 61215 norm – Ageing tests in photovoltaic modules.
Our Sunmeter sensor was the first radiation sensor provided with a Modbus signal output launched on the global market in 2009.
Thermopile pyranometers complete the range of sensors that measure solar irradiation. Their measuring range is much wider than those of photovoltaic cells (300 ÷ 2900nm cfr. 330 ÷ 1100nm) and they are particularly suitable for meteorological measurements and for the measurements of global solar energy when it is required by the investor of the photovoltaic system.
They are made in accordance with ISO 6090.
Soluzione Solare also produces WINDMETER since 2012. A vane anemometer with RS485 Modbus output in order to offer increased reliability even in environments with strong electromagnetic noise (EMC) or where the signal has to cover long distances.
All our products are made with particular attention to the trueness of measures and cost effectiveness.
The calibration is carried out individually for each sensor, having as reference a primary sensor calibrated by an accredited institute.
It is carried out according to the requirements of IEC 60904-4 norms (for sensors in PV cell), and ISO 9847 (for thermopile sensors). In particular, for the strategic importance that the PV cell sensors (or PV-cell pyranometers) play in the calculation of the performance of modules and photovoltaic systems, a set of rules exist that belong to the group of IEC 60904 norms that regulate construction and test conditions.
These type of sensors are likely to remain outside for the entire useful life. The experience transferred to attention in production gives our sensors a limited instrumental drift, however inevitable as they are optoelectronic sensors. Compliance with the typical calibration interval recommended in the calibration report allows the sensor not to go out of calibration range (UNI EN 30012).
We also offer calibration services of our sensors through reference cell periodically calibrated by the Fraunhofer Insititute. Every calibration routine generates a report that we obviously provide.
Since 2009 we cooperate with the ARPAV Institute of Research and Meteorology in Teolo (Padua), which has 200 weather stations, half of which equipped with thermopile pyranometers; our cooperation is primarily to compare the behavior of thermopile pyranometer with PV cell pyranometers in the measurement of solar irradiation received on the ground surface. That is a continuous incentive to improve our offer of radiation sensors.
To better meet the needs of sector operators, we also take account of some specific requests for the production of customized sensors. We also offer a wide range of services such as extraordinary maintenance and testing of all-size photovoltaic systems.