Solar PV: Is Bigger Better?We’ve all had the thought: What are the relative merits of utility-scale solar PV vs. the distributed, rooftop version?

To be sure, there are numerous factors to be considered.  In terms of the levelized cost of energy for each kWh, no one doubts that the utilities can afford to build (or buy) power at a scale that is unachievable at the local level.   But what about the value to the local economy? The cost of power transmission lines?  The further entrenchment of monopolistic interests over those of the individual?

IMO, the author does a good job in the article linked above.

Tagged with: , , , ,

Last Tuesday saw the passing of novelist E. L. Doctorow at age 84 (pictured). I had written about him a couple times, as I was always tickled by what he said one time about his writing routine: “Here’s how it goes: I’m up at the stroke of 10 or 10:30. I have breakfast and read the papers, and then it’s lunchtime. Then maybe a little nap after lunch and out to the gym, and before I know it, it’s time to have a drink.”

Needless to say, I don’t compare myself to Doctorow or any other talented writer, yet I have to say that I share a fairly relaxed approach to the subject of preparing my books and blogging here at 2GreenEnergy and other sites on clean energy. The concepts spring up naturally from reading other people’s stuff – some of which inspire praise and support, some curiosity, and others rebuke. There really is no discipline to it at all.

 

Tagged with: , ,

Run-of-River Hydro in Brazil: An Opportunity Available for the TakingEven though it’s experiencing appreciable economic and political uncertainty, Brazil doesn’t seem to waver too much in its profound commitment to renewable energy.  The vast majority of the 1.8 GW installed last year was wind energy, and, while I’m a big fan (pun intended), I’d love to see more run-of-river hydro, a concept that I believe fits very well with Brazil’s natural energy resources as well as its electricity demand patterns, as I’ve described here, in my list of renewable energy investment opportunities.  Needless to say, my colleague who acts as the principle of the deal linked above, couldn’t agree more.

 

Tagged with: , , , , , ,

Advice to Solar PV Entrepreneurs: Begin with Market ResearchLast week, I advised two would-be solar entrepreneurs with a novel idea to validate its market appeal before spending money building a prototype or taking any other steps forward. As I suggested here and here, using the kindest and gentlest language I could muster, I urged them to use a small but definitive market research effort to corroborate their belief that an appreciable level of consumer demand exists for the concept. (more…)

Tagged with: , , ,

Five New Innovative and Energy Efficient Ways to Solve your Home's Heating ProblemsMany people use radiators, boilers, air systems, and storage heaters to heat their homes. Although these options are effective, they use a lot of energy throughout the winter. If you have major heating problems, there are five heating alternatives that you must consider. (more…)

Tagged with: , , , , , ,

Expect Radical Thinking as the Effects of Climate Change Expand Over TimeI wrote a post recently on a class action suit in The Netherlands, in which a three-judge panel ruled that government plans to cut emissions by 14-17 per cent compared to 1990 levels by 2020 were illegal, insofar as it would be insufficient to prevent global warming of more than 2°C, which will lead to a violation of fundamental human rights worldwide.

A reader comments:  Hi Craig, that’s one radical (judicial panel) in the Netherlands! (more…)

Tagged with: , , , ,

2015 to be the Warmest Year On Record--An Opportunity for Renewables?For many years, climate change has been subject to many debates and certain skepticism. However, it is almost impossible to underestimate the relevance of such phenomenon if we pay attention to what is going on with the record breaking temperatures the Earth is currently experiencing. The year 2015 has been recently tagged as the warmest year on record by the National Oceanic and Atmospheric Administration, and the past month of June has been the hottest ever.
(more…)

Tagged with: , ,

HVAC System

Heating, ventilating and air-conditioning (HVAC) plays a crucial role in today’s times, not just to help keep our homes and offices comfortable, but also in the development of sustainable and environmentally sound infrastructure. As we move towards sustainable cities and “green buildings”, newer HVAC mechanisms and technologies are the way forward, offering as they do the dual benefits of high performance and adaptability.So, what are “green buildings”? A typical green building would be energy and resource efficient, non-polluting and waste efficient, flexible and easily scalable, as well as easy to operate. These buildings would utilize a “life cycle approach” to water and energy usage, and would be continually evolving in efficiency and adaptability. (more…)

Tagged with: , , , , ,

Deadly Heat Wave in India

On the one hand, you have the fact that the first half of 2015 is by far the hottest January-June on record, and that the total year is almost certain to beat 2014 as the previous hottest total 12-month year since records began to be kept in the 1880s.

On the other hand, we Americans re-elect U.S. senator James Inhofe (R-OK, now the chair of the Senate Committee on Environment and Public Works) shown here displaying a snowball as proof that global warming is a hoax.

What to make of this dissonance? How about:  “Stupid is as stupid does,” a classic line from the popular American movie “Forrest Gump.”

Tagged with: , ,

Victory for the Wind Energy Industry in Scotland, and What I Hope To Be My Last Comment on Donald TrumpI expect to make this the last public remark I’ll ever be forced to make about Donald Trump—and I mention it only because of its relevance to the world of renewable energy: Trump has lost his court battle in Scotland, in which he sued Scotland over the country’s decision to build a wind farm in the water that neighbors the billionaire’s golf resort.

From “The Scotsman”: (more…)

Tagged with: , , ,