Luís de Sousa

Luís de Sousa is currently a post-doc scientist at the Swiss Federal Institute of Aquatic Science and Technology (EAWAG). Heretofore my career evolved around the development and application of geospacial open source tools in research.

In a parallel life I created the first Portuguese language website dedicated to Peak Oil in 2005 (, in 2006 I was a founding member of ASPO-Portugal and later that year integrated the team that started the European branch of I blog AtTheEdgeOfTime.

How BP is Minimizing Renewable Energy in its Statistical Review

British Petroleum (BP) publishes its Statistical Review of World Energy, venting out a few catchy phrases that the mainstream media mindlessly repeats. This time the catch-phrase was: “overall energy consumption is growing faster than renewable energies put together”. This discourse is naturally convenient to those set on promoting fossil fuels and/or detracting renewable energy. But is BP really a trustworthy source on the matter?

August 2, 2017

EROEI estimates show PV to be a fully mature technology

Photo-Voltaics (PV) is an energy source where this problem has been more acute. Equipment and installation prices collapsed four or five fold since 2010, but published EROEI studies have not converged; in fact it appears they dispersed even further.

December 22, 2016

This is Peak Oil

In the last press review of 2015 I asked if that had been the year petroleum peaked.

May 23, 2016

Shale sub-prime and the Ides of March

In the first half of 2014 the volume of debt issued by the global petroleum industry was equivalent to the GDP of Austria.

February 13, 2015

Photovoltaics: new policy challenges for Europe

Using a simple cost model this article shows that PV technologies can indeed supply electricity to the grid for less than 0.10 €/kWh in large swaths of the continent…

December 19, 2013

At the edge of time

An interpretation of the recent crisis as due to mineral scarcity.

October 29, 2013

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