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Wind Energy and Compressed Air Energy Storage Represent Environmentally Friendly Baseload Power

craigshieldsPosted on September 21, 2014 Posted in Wind Energy

In a discussion of one of our cleantech investment opportunities that happen to implement wind energy with compressed air energy storage, a friend writes, “compressed air as a storage medium is a commodity along with other storage mediums, so the success of this company depends upon whether the subject company has patented a defensible technology that takes CAES, a technology from the 70’s, and increases its efficiency and cost over other storage mediums. Comparing it to coal and nuclear plants is not a relevant comparison.”

I respond: (more…)

Tagged with: cleantech investment opportunities, compressed air energy storage, eco-footprint of coal mountaintop removal CO2 SOx NOx Cd As Se Hg radioactive isotopes, Environmentally Friendly Baseload Power, LCOE of coal and nuclear and wind, molten salt thorium reactor, Wind Energy

People’s Climate March — Looks Like a Huge Success

craigshieldsPosted on September 21, 2014 Posted in Climate Change

I’m sorry I was unable to be a part of this historic event. “People in the streets as far as the eye can see,” reported the NY Times, a reporter for which took this shot a few hours ago. Wow, that’s good news; it certainly is gratifying to see that the march is proceeding so successfully.

As the great abolitionist and author Frederick Douglass told us, “Power concedes nothing without a demand.” (more…)

Tagged with: CO2 pumping into our ever-warming atmosphere, consumption of fossil fuels, Frederick Douglass, low-carbon future, People’s Climate March

People’s Climate March in New York City

craigshieldsPosted on September 19, 2014 Posted in Climate Change

The 1883 eruption of Krakatoa produced the loudest sound ever known. It could be heard 3000 miles away and it reverberated around the globe 7 times before diminishing. Pictured here is the relatively tiny eruption of the same volcano in 2008.

As long as we’re on the subject of impressive numbers, here are a few that describe the People’s Climate March on Sunday in New York City. I wish I could be there, but since I can’t, I’ll join the solidarity march in Santa Barbara. (more…)

Tagged with: Climate Change, climate disruption, People’s Climate March

Advice To a Young Man on Renewable Energy

craigshieldsPosted on September 19, 2014 Posted in Renewables - Science

A young reader named Brendan writes:

Hi, I am a student currently in the 12th grade. With your knowledge and expertise in the field of renewable energy, I would really appreciate it if you could guide me in making an important decision. I would like to take up a course related to renewable energy (solar) for my higher studies, but I was told not to specialize too early, as there are several things to learn before that, in order to build a strong foundation.

As a professional in the field of renewable energy, what would you recommend?

I’d be very grateful to you for helping me out on the matter. Thank you. (more…)

Tagged with: advanced nuclear, Environmental science, planet's eco-systems, solar thermal geothermal

Are Nuclear and Renewable Energy Really Enemies?

craigshieldsPosted on September 19, 2014 Posted in Nuclear

Eventually, the pro-nuke—anti-solar/wind people with whom I’ve recently been corresponding are going to lose patience with me and delete me from their email distribution list. Earlier today, a gentleman by the name of George Erickson sent the 100-or-so of us this piece on one of the negative environmental consequences of wind energy. Sadly, what these folks do for a living is digging up stuff like this. Why? Of the many millions of scientists who study the energy industry, why do these pro-nuke people follow the fraction of a percent of them who believe that renewable energy is a bad idea? (more…)

Tagged with: displacing fossil fuels, ever-improving ensemble of renewables, low-carbon future, Nuclear and Renewable Energy are Enemies, pro-nuke—anti-solar/wind, wind energy 4.18% of the U.S. grid mix last year

From Guest Blogger Heather Roberts: Geothermal Heat Pump Tips and Guidelines

craigshieldsPosted on September 19, 2014 Posted in Geothermal

Geothermal pumps can be of great help when you need to save up some money on your utilities and heating. The greatest thing is that they are essentially in balance with the natural world around you. A geothermal system however costs quite a bit to install and may prove to be too expensive in most cases, but it will be an excellent long-term solution to your heating and energy needs if you can afford it. (more…)

From Guest Blogger Kimberly Grimms: Eco-Education beyond Eco-Awareness

craigshieldsPosted on September 19, 2014 Posted in Sustainability

According to an article published on The Telegraph, new survey indicates that most people are aware and concerned about the damages that are constantly being inflicted on the environment. They are also troubled by continuous loss of biodiversity, changes in the countryside, and the deterioration of the earth’s natural resources.

While it is indeed reassuring to know that most people are willing to do something to ensure environmental sustainability, the real game changer is what people actually do to achieve this. This is where environmental education comes in. (more…)

From Guest Blogger Jessica Max: Green Energy – The Future Energy Solution

craigshieldsPosted on September 19, 2014 Posted in Renewables - Business

Everywhere you look, it seems, terms green energy and renewable energy all the rage. There can be little doubt that our climate is changing and that we as humans need to do something if we can. But what exactly is green energy? (more…)