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Private solar installations are really taking off nationwide. In just two years, (about the same length of time it takes to get a pair of 250 MW solar power plants approved in California, for example), homeowners and businesses have added that much power to the Californian grid, just from individual rooftops throughout the state.

To solve the problem permanently, Sentridge suggested installing 75kW ABB industrial drives on all the pumps, each equipped with ABB Anti-Jam software, part of its Intelligent Pump Control (IPC) software. An add-on to ABB industrial drives, IPC contains all the common functions needed by water and waste utilities, industrial plants and other pump users.

As the World Future Energy Summit (WFES) draws to a close, I decided to tackle a topic that has been quietly popping up in many of the discussions and panel sessions this week.  In many places the topic of feed in tariffs is under heated debate.

The Chilean Agency for Energy Efficiency is developing an energy efficiency labeling system for new vehicles due out in 2011 and will be mandatory starting in September.  (Diario Financiero, 12/16/10)

Scientists at the University of Costa Rica are developing solar cells sensitized with dyes from local plants.  Benefits of the cells include its cheaper production price, flexibility and thinness, and ability to produce power with very little light.  However they are not yet as efficient as the present day silicon solar cells. (El Financiero CR, 12/14/10) Mitsubishi Motors will release the first electric car in Costa Rica, called iMiEV.  The car is 100% electric, automatic, is powered by a lithium-ion battery, has room for five people and will cost $61,500.  According to the company, Costa Rica was chosen for car’s release in the Americas due to its environmental record and goal to become carbon neutral by 2021. (El Financiero CR, 12/14/10)

Chris Bennett, a senior electrical engineer at Ratcliffe, said: "It is always surprising to people who visit the site that we are so efficiency conscious, but they're often even more surprised that we have to pay for the power we use during the generation process so it's essential we don't use more energy than we actually need. Even more important is minimising the environmental impact of the power station and ensuring the reliability of the plant; outages have to be avoided where possible so critical equipment such as the motors have to be reliable."

An ambitious project called Desertec plans to build huge solar power plants in the Sahara desert to feed clean energy to Europe. Political opposition aside, the scheme's backers also face technical hurdles and must decide which of the solar technologies below can deliver on such a scale.

Construction crews last week prepared a concrete slab to serve as a staging area for the replacement of Limerick's six huge transformers, a $90 million job that will take about two years to complete. The improvements to the transformers, which convert electricity for transmission on big power lines, are only one component of a complicated effort to "uprate" the plant's output, adding 170 megawatts of generating capacity to each unit. Along with earlier upgrades, the improvements will expand Limerick's total capacity to 2,600 megawatts - 23 percent more power than it produced when the two units were completed in 1989.

Using the waste heat as a form of electric power has multiple advantages. Whereas on one hand, using the theoretical model of molecular thermoelectric helps in increasing the efficiency of cars, power plants factories and solar panels, on the other hand efficient thermoelectric materials make ozone-depleting chlorofluorocarbons, or CFCs, outdated.

A robust transmission system is the cornerstone for large-scale integration of wind power in the United States. Therefore, perhaps the greatest barrier to achieving this goal is building new transmission to connect the large amounts of location-constrained wind resources to the load centers. Another goal-limiting factor is the lack of appropriate market rules across the various interconnections in the US. Furthermore any reversal of policy decisions made at Federal and State levels (e.g. Renewable Portfolio Standards) in support of renewable energy could send the wrong signal to the industry causing uncertainty in the markets, potentially stalling the investments in new wind plants. The reality is that there are five election cycles between now and 2030 so it is important that wind energy related policies are sustained during this period.   Other potential barriers to achieving this 20-by-2030 goal include: a surge in the global demand for wind energy which could limit the supply of turbines in the US; another financial crisis during the next two decades which affects the credit and investment markets; and lastly the lack of skilled work force to operate power systems with high penetration of variable generation.

Ted Nordhaus and Michael Shellenberger published the op-ed “Global Warming Scare Tactics” in the New York Times on April 8. Participants in recent debates over climate change may recognize their names. They’re the guys who run the Breakthrough Institute, a pseudo-contrarian “environmental research organization.”

While occasionally on point in its charges against the big organizations, the essay (based on interviews with mostly white male leaders of large national groups) had nothing to say about the environmental justice movement, or other grassroots groups led by women and people of color. It neglected as well the environmental movements of the Global South, today the heart of the climate justice movement.

Is fear of disruption of what Habermas calls the life-world the sole inducer of civic action? Of course not: social movements also cohere around other shared, negotiated understandings, identities, diagnoses of problems, and assessments of opportunities. Might fear paralyze rather than mobilize? Yes: in cases when the perceived threat appears impervious to resistance, and when commitment to the cause flags over time. Fear-based campaigns require a tangible evil: a draft card, a nuclear plant cooling tower, a polluting facility’s smoke plume, an Operation Rescue picket line.