California power data updated for April 2015 Craig Morris

Statistics » 22.05.2015

California power data updated for April 2015

Bernard Chabot is back today with an update of his chart set, including figures for maximum and minimum wind, solar, and wind up + solar. He also breaks down solar power into PV and CSP. And of course, the charts include conventional sources as well. read more »

Germany proving skeptics wrong on renewables Fraunhofer ISE

Germany proving skeptics wrong on renewables

With more than a quarter of the country’s electricity now coming from renewable sources, Germany’s energy transition – or Energiewende – is delivering reliable electricity, reducing emissions, and even decreasing overall costs. To see that, all we need to do is look at the data. read more »

A (silent) revolution in the wind sector Bernard Chabot

Wind power USA » 20.05.2015

A (silent) revolution in the wind sector

Over the past few years, a dramatic shift has taken place in the type of wind turbine installed, as the US market shows. The focus is clearly on raising capacity factors by increasing tower height and rotor blade length relative to generator output. Despite already high capacity factors exceeding 40 percent, Bernard Chabot says 60 percent is within reach. read more »

World's oldest operating wind turbine turns 40 Paul Gipe. All rights reserved.

Wind power » 19.05.2015

World's oldest operating wind turbine turns 40

If you can make it up to Denmark on May 30, you can take part in a special birthday. Tvindkraft, a 1 MW Turbine built as a school project, will be turning 40. The machine was built right under the noses of heavily funded R&D projects by aerospace engineers. Their turbines were scrapped after only a few years. As guest author Paul Gipe explains, this one keeps turning. read more »

New community wind farm in UK is largest ever E4L EnergyMap

Scotland » 18.05.2015

New community wind farm in UK is largest ever

This month, construction of the Beinn Ghrideag wind farm was completed. In the next few months, three 3 MW Enercon wind turbines are expected to start power production. A comparison with a recent German committee project is illustrative. read more »

Silent wind revolution in France Foto: Vestas

Wind power » 15.05.2015

Silent wind revolution in France

Bernard Chabot is back today with an investigation of how a focus on greater capacity factors, rather than greater peak power generation, from wind turbines could further the energy transition in his home country. read more »

Germany drastically increases “winter reserve” Foto: Ingo Bartussek/fotolia

Power sector » 13.05.2015

Germany drastically increases “winter reserve”

At the beginning of the month, the German grid regulator announced roughly a tripling of the emergency backup capacity for the power sector. read more »

Are the poor paying for the rich in the Energiewende? Andreas Hermsdorf, pixelio.de

Policy » 12.05.2015

Are the poor paying for the rich in the Energiewende?

A new study in Germany looks into the social impact of the country’s energy transition – not only how much is being paid, but whether specifically low-income families are subsidizing green pet projects for the rich. read more »

How big can a community wind farm be? Foto: Energiegenossenschaft Starkenburg

Ownership » 11.05.2015

How big can a community wind farm be?

A project completed in Germany last month near the Danish border shows that community renewable energy projects can be utility-scale. read more »

Silent wind revolution in Germany E4L EnergyMap

Wind power » 08.05.2015

Silent wind revolution in Germany

Bernard Chabot is back today with an impressive overview of a trend in the German wind sector. The focus is increasingly on smoothing out power production, not increasing peak capacity. And it is happening without specific policy incentives. read more »

The right way to integrate solar + storage on the grid Rainer Sturm/ Pixelio

A guest report » 07.05.2015

The right way to integrate solar + storage on the grid

Around the world, the discussion about storing solar power focuses on on-site consumption. But that approach does not do what the grid needs. Today, US utility expert James White presents a proposal to fix that problem. read more »

Stress test for offshore cables Foto: Brugg Cables

Stress test for offshore cables

These days, manufacturing quality products is no longer enough on its own. It is equally important to prove that these products match up to the requirements. In a test facility at Brugg Cables in Switzerland, stress tests for torsionable power and data cables are carried out under real-life conditions. read more »

Record solar pushes peak price average below baseload for first time Foto: Andreas Hermsdorf  / pixelio.de

Photovoltaics » 06.05.2015

Record solar pushes peak price average below baseload for first time

In April, power prices on the EEX electricity exchange continued to drop. Both baseload and peak prices fell below three cents, partly because last month was also a near record for solar power production. read more »

Managed disruption: the push and pull of policy in Germany Foto: Deutscher Bundestag/Katrin Neuhauser

A guest report » 05.05.2015

Managed disruption: the push and pull of policy in Germany

British policy expert Catherine Mitchell takes a look at a recent series of articles investigating the German power market and policies behind it. She finds that the secret to Germany's success is its ability to stay the course despite dynamic changes. read more »

California power data Q1 2015 Siemens

Statistics » 04.05.2015

California power data Q1 2015

Bernard Chabot is back today with an overview of California's power sector in the first three months of this year. Despite the ongoing drought, hydropower production was up year-over-year. read more »