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Suntrace successfully completed its first World Bank ESMAP solar measurement campaign

21.06.2019 Category: News

We are very happy that the Maldives Meteorological Service on behalf of the Ministry of Environment integrates the high quality solar measurements into their operational weather observation system

Suntrace successfully completed its first World Bank ESMAP solar measurement campaign. We are very happy that the Maldives Meteorological Service (MMS) on behalf of the Ministry of Environment is taking over the responsibility for operating the stations and integrates the high quality solar measurements into their operational weather observation system.

The 4 solar measurement stations have been installed at 4 airports from Gan in the very South of this tropical archipelago up to Hanimaadhoo, which is one of the northernmost islands at the latitude of Sri Lanka. Suntrace delivered more than 2 years of measurement data. Continuation of the measurements by MMS will be of further benefit in the future to extensively study the performance of the recently started operation of the first Meteosat Second Generation (MSG) and potential effects in satellite-derived solar data caused by changes in the viewing geometry or drifts of satellite sensitivity.

The high quality measured time-series help to make PV projects on the Maldives bankable as they are compliant with World Bank’s requirements. In this case World Bank Tier 2 stations have been installed, which are characterised by an ISO Class A pyranometer for outstanding measurements of the Global Horizontal Irradiance (GHI) and a Rotating Shadowband Irradiometer (RSI). The RSI gives the advantage of providing also measurements of Diffuse Horizontal Irradiance (DHI) and Direct Normal Irradiance (DNI). This helps to lower uncertainty in PV yield calculations due to errors occurring when transposing GHI into the Global Tilted Irradiance (GTI) plane of array radiation, which is essential for simulating power output.

Local Partner Renewable Energy Maldives (REM) was very helpful in supporting installation, and maintenance over the whole period. REM also acts as a very sophisticated consulting company active on the Maldives and Sri Lanka for developing island grids and rooftop PV systems.

Suntrace with its HelioScale stations is one of very few companies worldwide, which World Bank has qualified in its Roster of Firms for providing solar measurement stations, which can deliver bankable data. We are happy to support other countries with similar campaigns or offer project developers to qualify their site for high level solar resource assessments, which require ground-based measurements.