6 FAQs about Ranking of photovoltaic and energy storage potential

What is the global photovoltaic power potential study?

The Global Photovoltaic Power Potential Study is a comprehensive analysis of global solar power potential. It is published as a partial output of this study, using data from the Global Solar Atlas, World Bank Open Data, and other public sources. It is part of the global ESMAP initiative on Renewable Energy Resource Mapping, aiming to support the appropriate scale-up of solar power in the worldwide energy mix.

Is solar PV a good source of electricity?

The potential for clean, carbon-free electricity generation from solar photovoltaic (PV) sources in most countries dwarfs their current electricity demand. Around 20% of the global population lives in 70 countries boasting excellent conditions for solar PV.

What is the average solar PV output per kilowatt hour?

In total, 93% of the global population lives in countries that have an average daily solar PV potential between 3.0 and 5.0 kWh/kWp. Around 70 countries boast excellent conditions for solar PV, where average daily output exceeds 4.5 kilowatt hours per installed kilowatt of capacity (kWh/kWp) – enough to boil around 25 liters of water.

Is there a difference between solar potential and practical potential?

Perhaps surprisingly, the difference in average practical potential between countries with the highest potential (e.g. Namibia) and the lowest (e.g. Ireland) is slightly less than a factor of two. In total, 93% of the global population lives in countries that have an average daily solar PV potential between 3.0 and 5.0 kWh/kWp.

Is solar PV still economically attractive?

Hence solar PV may still be economically attractive in countries with relatively low solar resource potential due to the prevalence of high electricity prices, or a high daytime peak load from industry or air conditioning.

What is the solar resource potential report based on?

The report is based on data provided by the World Bank through the Global Solar Atlas, a free, web-based tool providing the latest data on solar resource potential globally. It is accompanied by country factsheets, downloadable from the Global Solar Atlas, that provide a summary of the resource potential and how it compares to other countries.

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