Discusses the recent news that renewable energy (including hydro as well) now supplies more electricity to the US grid than does nuclear power. The post then goes on to list some large solar and wind projects in advanced stages of the development pipeline as a reason for being optimistic that the solar and wind side of the renewables is rapidly growing in scale.
Makes the case for coupling hydrogen production with wind farms in order to deliver more dispatchable power; lessen the need for transmission capacity; as well as other important bottom line benefits.
Summarizes the new green jobs study by the Brookings Institute, noting that the study reports that the driving force behind the U.S. “clean economy” over the last decade has been emerging energy technologies. It is these dozen or so “hot” segments within the larger green economy where most of the growth has been concentrated. This suggests that, in order to build a cleantech economy, the U.S. should put primary emphasis on new, technology-intensive, energy-related sectors.
This post looks at the message promoted by the gas industry that natural gas is the necessary complement to renewables such as solar and wind, because the latter are variable and thus need a backup power source that can quickly be brought on line. There are other and perhaps even better ways of addressing variability that also need looking at.
The clean energy sector is entering a phase of dramatic change in which business models are being transformed against a backdrop of regulatory uncertainty, as the industry emerges from a challenging period caused by the global economic downtown. Technologies and business structures that were once abandoned, are now being revived in several key sectors.
This post answers the recently much hyped focus on wind’s variability problem, quantifying it in clear cost terms that put it in perspective. The post helps clarify the differences between energy, capacity and the ancillary services surrounding ensuring capacity and goes on to answer some of the other related problems that have been alleged for wind energy as its penetration level increases.
To shift the global economy from fossil fuels to renewable energy will require the construction of wind, solar, nuclear, and other installations on a vast scale, significantly altering the face of the planet. Can these new forms of energy approach the scale needed to meet the world’s energy demands?
The recent swings in the spot price for crude oil — especially in light of the currently rapid rising spot prices are cause for alarm. Noting that the current run up of prices looks a lot like period leading up to the sudden price spike that occurred in the summer of 2008. It goes on to argues that the global economy needs a better market regulating mechanism that can help manage these swings and reduce their amplitude so they become less damaging to the world’s economies. The energy business — whether it is alternative energy or oil, gas or coal exploration and development — has huge up front capital needs. This needed capital is much harder to raise in a climate of such extreme near term price uncertainty.
Last year, during Women’s History Month, we published, our list of the top women in sustainability. This week, PINK released their list of the top women in sustainability for 2011. These are women who they see as pioneers who are employing cutting-edge best practices to lead the movement for corporate responsibility and sustainability