Within the current energy transition, major energy companies are making strategic shifts. How? Engie's case, by Gwenaëlle Huet
There is still long way to go from theory to practice for this power to unleash its full potential. But some companies are already taking their chance.
Emissions have plummeted. But progress is yet to be made in urban areas, industrial zones... and the countryside. / Jean-Luc Legoupil
The future mix should reduce its environmental impact. It is crucial to compare different production sectors. / Isabelle Blanc
Tesla's PowerWall is the first mass-produced individual electric storage solution to hit the market. Is it cost-effective enough to be sustainable?
Smart consumption is on the rise. But whose smartness is it: machines', electricity suppliers', or ours?
If we wish a new, more sober way of life to emerge, we should trust social imagination, based on the dynamics of sharing and pooling.
Who exactly will be the actors of a coming energy transition? Will end-consumers really tip the balance?
Wind turbine and solar power sources now represent a significant fraction in the electricity mix of industrialized countries. Shall they soon be profitable?
Storing electricity? Old solutions to this old problem are gaining momentum. Like using electricity to obtain hydrogen and reconverting it into energy.
In the nuclear industry, rigorous mastering of the production tool is a condition for performance. / Hervé Machenaud
Provided we can prove its feasibility, nuclear fusion could be justified, thereby enabling a move to industrial fusion power production.
Achieving an energy transition is obviously necessary in the long run, but the situation is much more confusing in the short and mid-term perspectives.
On several occasions, President Obama singled out Wal-Mart as a model in terms of energy savings. Why?
The natural inertia of history and the political and economic costs make changes difficult. What are the most promising routes to transition?
The rise of renewable electricity and solidarity between territories are the main drivers of the evolution of the electricity network. The stakes are high.
Opening markets and connecting grids may sound contradictory with unilateral decisions such as Germany's accelerated energy transition.
In terms of advantages, costs and risk management, it's a completely new equation.
In 2011 Germany decided to abandon nuclear power and switch to renewable energy. Financial cost, industrial implications, social acceptability, political tensions shape a new landscape.
The strategic policies chosen by China and the expected advent of new PV cells could change the economic dynamics.
What exactly are the advantages of this new technology? Will molten salt reactors earn their place in nuclear power production?
Increasing safety requirements, upmarket rise of Asia, dynamism of the small reactor segment and slow ripening of third gen reactors draw a new map.
Overwhelmed by the boom of solar home systems, the German government has had to brutally halt subsidies whose costs were threatening to… go through the roof.
Might shifting perspectives on both lifestyle and technology come to be seen less as a constraint and more as the key to ever greater progress?
The European energy equation is complicated with the German choice on nuclear power, the arrival of shale gas, the rise of renewable energy.
Wind power has provoked forceful debates over how to manage intermittency. The result is a multiplicity of paths to innovation, one of which leads directly to electricity storage.
The Fukushima has brought nuclear safety front-stage again. This catastrophe has already enabled us to pin-point several specific weak points, e.g., system complexity and non-collaboration (independence) of the Japanese institutions concerned.
In February 2011, the European Council made a commitment to complete the internal energy market by 2014. New challenges have entered the equation: the need for increasing the share of renewables and the necessity to ensure secure supplies.
The global electricity sector is facing three major challenges: the security of supply to keep up with ever-mounting demand, the fight against climate change, and the global trend toward massive urbanization.
A crossroads where decision makers and citizens must publicly evaluate the costs and benefits of pursuing nuclear power. / Daniel Aldrich
Nuclear energy is once more on the defensive, thanks to Fukushima. But day to day, fossil fuels are far riskier in the toll they take on people, not to mention their effect on global warming.
Power grids have long been constructed with a built-in intelligence. So why is so much noise being made over the arrival of so-called "smart grids"? / Bertrand Delpech
France has made the decision to bury the most radioactive waste 500 meters underground. Marie-Claude Dupuis, CEO of Andra (French National Radioactive Waste Management Agency) discusses the project.
More than 56 years have passed since the first nuclear plant for civilian power generation went online, but there is still no consensus on the best way to dispose of dangerous waste.
Will the disaster at Fukushima set nuclear power back yet again? And will nuclear power ever be safe enough to suit an anxious public?
The palette of tools available to national authorities include fiscal incentives, quotas on production and the creation of feed-in tariffs. Anything goes?
It is perhaps the best solution for lessening our carbon footprint, reducing dependence on oil and ultimately slashing the cost of electricity.
The economic and financial crisis of the past 18 months modified the supply and demand balance in Europe. Demand has dropped bringing short-term relief, but investments in energy infrastructures have also decreased, which is worrying for the longer term.