Posts Tagged by solar power
Pros and Cons of Solar Energy from Photovoltaics
| March 12, 2012 | Posted by Craig Shields under Photo-voltaics |
Here’s another short video for young people and newcomers to the subject of renewable energy. In this brief talk on solar energy and photovoltaics (solar panels), I provide my thinking on the strengths and weaknesses of solar power. Hope you enjoy.
Infographic on Solar Energy
| March 6, 2012 | Posted by Craig Shields under Solar Thermal |
Here’s another in our ongoing series of infographics, designed to offer young people and clean energy newcomers an accessible introduction to the subject. Here, we provide an objective look at the “pros and cons” of solar.
While we advocate in favor of solar generally, we believe that it’s best to arm people with the unvarnished facts, one of which is “there is no such thing as a free lunch,” i.e., all forms of energy generation come with certain costs and other downsides. It’s by understanding the totality of these facts that one becomes able to have a meaningful, informed, and relevant discussion on the subject.
Alain Clenet Brings Cleverness and Compassion to the People of Uganda
| January 21, 2012 | Posted by Craig Shields under Photo-voltaics |
Those whose interests including super high-end exotic automobiles may know the name Alain Clenet and the eponymous retro-designed “drivable art” he built in the late 1970s and early 1980s. In the meeting I had with him at his home this morning, I was taken by the keenness of his mind, as well as the breadth of his heart and spirit. Though he still builds cars as a hobby, he’s turned most of his efforts to helping the poorest of the poor, mostly in undeveloped places in Africa.
I thought I’d relate a quick story that blends Alain’s compassion with his skill for building things – and even a bit of clean energy.
When Alain and his people go to an area, they always ask what the people lack, but they also ask, “What do you have too much of?” Read More
From Guest-Blogger Joshua Okomo: Green Energy and Human Rights
| December 28, 2011 | Posted by okomo under Nuclear |
Global nuclear capacity has remained flat in growth in the last decade, the worldwide operational installed capacity increased insignificantly from 370 GWe at the end of 2005 to 375 GWe at the end of 2010. Nuclear capacity in the OECD countries peaked in 2006 at 2,259 TWh and declined to 2,136 TWh in 2009. A severe earth quake and tsunami in March 2011 that ravaged the pacific coast of northern Japan resulted in devastating incident in Fukushima Daiichi nuclear power plant. Following this incidence several countries have announced safety reviews of their nuclear power programmes. Read More
Electric Vehicles and CO2 Emission Abatement
| December 22, 2011 | Posted by Craig Shields under Electric Vehicles |
Frequent commenter Glenn Doty writes:
What would really be nice is an infographic comparing the cost of mitigating CO2 with various alternatives… just to put the different alternatives into proper perspective.
For instance, how much more does it cost to abate CO2 emissions by setting up a rooftop solar panel in NJ as compared to installing additional insulation in an office building in Texas or setting up a wind farm in the Dakotas?
This would be extremely instructional to your readers in terms of what policies would make more sense… and it would be fun to look at how you graph the negative CO2 abatement value of EV’s.
I respond:
Ha! I was reading along here, wondering when you were going to make your point about EVs, and lo! (a good word for the season), there it was.
Seriously, please send me a high-level treatment of your reasoning.
At a minimum, there are two things I don’t get. Read More
2GreenEnergy’s Financial Wizard Bill Paul on Shale Gas
| December 19, 2011 | Posted by Craig Shields under Fossil Fuels |
2GreenEnergy financial guru Bill Paul has a natural gift for looking at the macro issues affecting renewables. Here’s a high-level summary of his thinking on clean energy vis-à-vis shale gas, in which he summarizes:
There’s a distinct possibility that Wall Street’s going to start diverting big bucks away from green tech and into shale gas, if it hasn’t already. I see the billions going into shale gas infrastructure posing a huge impediment to developing clean tech. Read More
A Collaboration on Fuel Cell Vehicles — But Exactly Whose Interests Are At Stake? Not Yours.
| December 18, 2011 | Posted by Craig Shields under Electric Vehicles |
Here’s an article that describes a collaboration between GM and BMW on fuel cell vehicles.
Wow, that’s remarkable. Just when I had started to trust the car companies based on the sincerity of Nissan/Renault CEO Carlos Ghosn and his people who build and promote the LEAF, I see this. A few basic points:
• The oil companies are the main supporters of the hydrogen economy. They see hydrogen as a mechanism for them to continue to retain a service station which will continue to provide the consumer with something they can pump. Electricity, on the other hand, is ubiquitous.
• Creating hydrogen suffers a 4:1 efficiency issue. I.e., generating hydrogen in a renewable way requires four times the number of solar panels that would be needed to make the electricity to put into my battery. Read More
From Guest-Blogger Joshua Okomo — Green Energy and Human Rights Paradigm
| December 15, 2011 | Posted by okomo under Renewables - Politics |
Global nuclear capacity has remained flat in growth in the last decade, the worldwide operational installed capacity increased insignificantly from 370 GWe at the end of 2005 to 375 GWe at the end of 2010. Nuclear capacity in the OECD countries peaked in 2006 at 2,259 TWh and declined to 2,136 TWh in 2009. A severe earth quake and tsunami in March 2011 that ravaged the pacific coast of northern Japan resulted in devastating incident in Fukushima Daiichi nuclear power plant.
Following this incidence several countries have announced safety reviews of their nuclear power programmes. Many countries have cancelled nuclear power plans and some are considering closing current plants. While this nuclear meltdown is happening, the global growth in energy from solar, wind, biomass, geothermal and other renewable sources has been 30-40 percent per annum of recent. Currently global growth in deployment of solar PV is the highest standing at 60 percent, this is followed by wind power at 27 percent, then biofuel at 18 percent and then biomass at 7 percent. These trends predict the world will be a nuclear free world.
Solar Goes Mainstream
| December 15, 2011 | Posted by Craig Shields under Photo-voltaics |
Renewable Energy World’s Steve Leone published an article today on solar and its attempts to go mainstream, in which he mentions a great number of developments that will ultimately make solar far more appealing to consumers than it is currently. Some of these notions include transparent PV on windows, as well as PV roof shingles and other forms of building-integrated solar.
It was good to see he noted the role of electric transportation in the equation. I.e., there is clearly a growing number of people who want to control the source of electricity that charges their cars – and what better way to do that than to install that source on their roofs?
If we still have a civilization here in 2050, we will have “gotten there.” The questions are how much damage we will have done, and who’s going to get rich in the process.
From Guest Blogger James Hawkins: Solar in the UK
| December 12, 2011 | Posted by James under Photo-voltaics |
In April 2010, the UK government introduced their own version of a feed in tariff scheme to help boost our renewable figures and to cut carbon emissions. It is a scheme where homeowners are paid 41.3p for generating electricity with photovoltaic solar panels on their roof, and they are then extra in the case that they don’t use the electricity. Combining the average bill savings with these payments amounts to approximately £1,000 per year at today’s prices. With the scheme lasting for 25 years, the panels will pay themselves off over time, usually 9 to 10 years, and then they will start to generate a healthy income. Our national solar panels company has seen demand for solar skyrocket by over 400% from before the FIT was introduced. Read More
