Blog

Global Solar Atlas – updated data and new features available!

We are proud to announce the release of Global Solar Atlas version 2.0. The new online app comes with updated data and new features that Solargis has developed for The World Bank. Read article

New Solargis Prospect app: making pre-feasibility easier and more reliable

One of first steps in the development of solar energy projects is a pre-feasibility study. A key requirement is to make decisions on basis of reliable data, with limited time and resources. Read article

Solar resource data – time series data vs monthly averages

Bad data in equals bad data out. This well-known phrase is very relevant in a context of technical design and energy simulation of photovoltaic (PV) power plants. Most solar companies understand this and are carefully evaluating uncertainty of solar resource data used for feasibility purposes ... Read article

How to calculate P90 (or other Pxx) PV energy yield estimates

To assess the solar resource or energy yield potential of a site, we model the solar resource/energy yield using best available information and methods. The resulting estimate is the P50 estimate, or in other words, the “best estimate”. P50 is essentially a statistical level of confidence suggesting that we expect to exceed the predicted solar resource/energy yield 50% of the time. However, ... Read article

New 3D tool for configuring and visualising tracker movement

We’ve released a new tool that will allow Solargis users to request time series data for PV systems with trackers. You can choose from 4 types of tracker options: 1-axis horizontal, 1-axis inclined, 1-axis vertical, and 2-axis tracking. It is also possible to specify tracker rotation limits and enable/disable backtracking. Read article

GOES-East satellite covering Americas is replaced by the new generation GOES-R

The old GOES-East satellite, also known as GOES-13, was launched to orbit in 2006. The data coverage is North and South Americas. Read article

Being certain about solar radiation uncertainty

The process of estimating solar radiation data uncertainty can be sometimes unclear. We've tried to summarise in 4 simple steps how model validation statistics can be used for determining uncertainty of model estimates for P75, P90, and other Pxx estimates. Read article

How Solargis is improving accuracy of solar power forecasts

Just as there are horses for courses, different forecasting techniques are more suitable depending on the intended forecast lead time. Ground-based and satellite-based methods offer best forecast skill for forecast lead time of few hours ahead. Beyond that NWP models offer best forecast skill. A combination of models provides better forecast than any individual forecast model. Read article

Solar maps of 145 countries released for free download on Global Solar Atlas

In collaboration with the World Bank Group, today we are releasing new mid-sized maps of 145 countries on Global Solar Atlas. Read article

Improved monitoring and forecasting service for Indian Ocean region

The meteorological satellite Meteosat-7, which had been providing satellite imagery for the Indian Ocean region has now been decommissioned. The second generation Meteosat-8 replaces the first generation Meteosat-7 satellite. Solargis users working on projects in the Middle East, South and Central Asia, will benefit from the superior technical features of the Meteosat-8 satellite. Read article

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