Amidst the time when the experts have started to throw in their contemplations regarding whether the Paris summit in December 2015 will “save the earth”, or will just end up as another Copenhagen, India has come up with a unique business opportunity that sees a target of setting up 100,000 MW of solar energy by 2020.
A senior government official stated that the rooftop solar projects offer a big business opportunity upto the tune of Rs. 4 lakh crore.
“Grid connected rooftop solar power is the most important sector as far as renewables are concerned. This 40,000 MW project requires an investment of up to Rs. 4 lakh crore and is a big business opportunity for all,” said Tarun Kapoor, joint secretary, ministry of new and renewable energy (MNRE), addressing a conference in the capital organized by The Energy and Resources Institute (TERI).
In regard to the system by which people who set up solar power panels on their rooftops can sell electricity back to the grid, he said that there are 20 state regulators who have issued connections whereas 17 states have issued policies for net metering.
Also an objective of achieving 100,000 MW from solar energy by 2020, 40,000 MW of which will come from rooftop solar power, has also been set by the government.
“Taking a systemic approach towards implementing this large and ambitious programme, ensuring it is a win-win for all stakeholders is critically important,” added Leena Srivastava, acting director-general of TERI.
The availability of cheap natural gas and greater energy efficiency has reduced demand for nuclear energy in recent years
Nuclear power is clean, safe and better for the environment than some alternative energy sources
Industry experts say that women who work in nuclear power can be powerful advocates for nuclear
San Francisco, August 26, 2017: Kristin Zaitz is confident that her nuclear power plant is safe.
Zaitz, an engineering manager, was at Diablo Canyon Power Plant during both her pregnancies and has scuba dived to inspect the plant, which hugs the California coast. Zaitz wears a pendant with a tiny bit of uranium inside, an item that tends to invite questions.
“We all have our perceptions of nuclear,” Zaitz said.
In a few years, Diablo Canyon will close, part of a trend nationwide. The availability of cheap natural gas and greater energy efficiency has reduced demand for nuclear energy in recent years. Add to that ongoing concerns about public safety, such as those raised by memories of disasters at nuclear power plants in Fukushima, Japan, Chernobyl in Ukraine (then part of the Soviet Union) and Three Mile Island in the United States.
Nuclear is ‘cleaner’ than fossil fuels
Supporters of nuclear energy say that when a reactor-based generating station closes, not enough wind and solar power is available to make up the difference. They lament that energy companies tend to turn instead to fossil fuels — coal and natural gas — which produce environmentally harmful emissions.
Zaitz and her co-worker Heather Matteson, a reactor operator, started Mothers for Nuclear, their effort to get the word out that nuclear power is clean, safe and better for the environment than some alternative energy sources.
“I went into the plant very skeptical of nuclear and being scared of it,” said Matteson. “It took me six to seven years to really feel like this is something good for the environment. I don’t want people to take six to seven years to make that decision. We don’t have that long.”
Matteson, too, wears the uranium necklace as a conversation starter. “Nuclear is fun,” she said. Is there any radiation emitted by the pendant? “There’s slightly more than from a banana,” she conceded.
Industry experts say that women who work in nuclear power can be powerful advocates for nuclear. They can help change attitudes of other women who tend to be more skeptical than men about nuclear energy’s benefits.
At the recent U.S. Women in Nuclear conference in San Francisco, women working in the industry talked about how more should be done to make nuclear power’s case to the public, and how they may be the best suited to do it.
“As mothers, I think we also have an important role to play in letting the public know that we support nuclear for the future, for our children,” said Matteson. “And we don’t know other mothers supporting nuclear power in a vocal way. We thought there was a gap to fill.”
Young women say they look at careers in this industry because they are socially minded.
‘Do something good for the world’
“I went into this wanting to do something good for the world,” Lenka Kollar, business strategy director at NuScale, a firm in Oregon that designs and markets small modular reactors. “Wanting to bring power to people. There are still more than a billion people in the world who don’t have electricity.”
Critics of nuclear energy say it doesn’t matter who is promoting it.
“Using mothers’ voices to argue for a technology that is fundamentally dangerous and that has been demonstrated by disasters like Fukushima to be not safe for the communities that surround the power plants or even cities that are hundreds of miles away is disingenuous,” said Kendra Klein, a staff scientist with Friends of the Earth, an environmental group.
While the future of nuclear power in the United States may be uncertain, the women here say they have a positive story to tell. (VOA)
The new self-powered version promises to be inexpensive and easy to apply to existing windows
The smart window controls the transmission of visible light and infrared heat into the building
The researchers chose the material because its chemical structure could be modified to absorb a narrow range of wavelengths
New York, July 2, 2017: By applying a new solar cell technology, researchers have developed a self-powered version of smart windows that could help save energy costs. Smart windows equipped with controllable glazing can augment lighting, cooling and heating systems by varying their tint, saving up to 40 percent in an average building’s energy costs. But these conventional smart windows require power for operation, so they are relatively complicated to install in existing buildings.
The new self-powered version promises to be inexpensive and easy to apply to existing windows, the researchers said.
This system features solar cells that selectively absorb near-ultraviolet (near-UV) light, so the new windows are completely self-powered.
“Sunlight is a mixture of electromagnetic radiation made up of near-UV rays, visible light, and infrared energy, or heat,” said Yueh-Lin (Lynn) Loo, Professor at Princeton University, New Jersey, US.
“We wanted the smart window to dynamically control the amount of natural light and heat that can come inside, saving on energy cost and making the space more comfortable,” she added.
The smart window controls the transmission of visible light and infrared heat into the building, while the new type of solar cell uses near-UV light to power the system.
“This new technology is actually smart management of the entire spectrum of sunlight,” Loo said.
In the paper published in Nature Energy, the researchers described how they used organic semiconductors — contorted hexabenzocoronene (cHBC) derivatives — for constructing the solar cells.
The researchers chose the material because its chemical structure could be modified to absorb a narrow range of wavelengths — in this case, near-UV light.
“Using near-UV light to power these windows means that the solar cells can be transparent and occupy the same footprint of the window without competing for the same spectral range or imposing aesthetic and design constraints,” Loo added.
The researchers explained that the near-UV solar cell technology can also power internet-of-things sensors and other low-power consumer products.
“It does not generate enough power for a car, but it can provide auxiliary power for smaller devices, for example, a fan to cool the car while it’s parked in the hot sun,” Loo said. (IANS)
China, May 30, 2017: There is a new reality in clean energy. The world’s major emerging economies — including China, India, and several others — are moving to the centre stage of the clean energy transition. By betting heavily on energy efficiency, on wind, solar and other renewables, as well as other less carbon-intensive technologies, these countries are increasingly leading the way.
This is the significance of the top-level meeting of energy ministers from the world’s biggest economies in Beijing next month. The fact that representatives from fossil-fuel producers like Mexico and Saudi Arabia will join renewable-energy pioneers like Denmark and Germany for a top-level meeting in China is not a coincidence. We are witnessing a global consensus that the key to energy transition will reside with decisions made in emerging economies.
There are many reasons to stand for clean energy today. These can range from reducing greenhouse gas emissions but also battling the scourge of air pollution, improving energy security by reducing the dependency on fossil fuels, diversifying supply, creating high-tech jobs or fostering innovation. As such, approaches to clean energy will vary from country to country.
According to the International Energy Agency (IEA), all of the projected growth in energy demand in the next 25 years will take place in emerging and developing countries. This means that implementing the right kind of policies and technologies will be critical to ensure stable supplies as well as meeting desirable environmental outcomes.
The good news is that this is happening. India was the first country to set comprehensive quality and performance standards for light emitting diodes (LEDs), and it expects to save as much as 277 terawatt-hours of electricity between 2015 and 2030, avoiding 254 million metric tons of CO2 emissions or the equivalent of 90 coal-fired power plants.
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Another upshot is that by committing to these new clean technologies, countries like China are helping drive down costs for the benefit of the world. China is now the undisputable global leader of renewable energy expansion worldwide, and the IEA forecasts that by 2021, more than one-third of global cumulative solar PV and onshore wind capacity will be located in China.
Recently announced renewable projects have broken new records, with power purchase agreements for several onshore wind and large solar PV farms now below $50/MWh.
As clean energy is increasingly driven by the emerging economies, global political leadership in advancing clean energy will be increasingly shared. This is precisely the function of the Clean Energy Ministerial (CEM), which was created in 2010, and whose goal is to form a partnership that brings together major industrialised and emerging economies to focus on clean energy technologies and policies, reduce environmental impacts, and ensure reliable and affordable supplies.
Our timing is critical. Action by the 25 CEM members, representing 90 per cent of global energy investment and 75 per cent of global emissions, is crucial for making the world less carbon-intensive than today.
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In Beijing, our focus will be to provide a collaborative environment to tackle these challenges in areas ranging from transportation, buildings to the power sector. Our governments will seek to increase electric mobility, with a target to reach 30 per cent of the new vehicle fleet by 2030. The recent announcements of the Indian government will go a long way towards this end. Another challenge for CEM governments will be to increase EV charging providers by a factor of 10 in the next five years. Other priority areas include improving efficiency in buildings, which account for nearly a third of all energy consumption and 20 per cent of greenhouse gas emissions.
In the power sector, the CEM is seeking to move away from the coal-or-renewables paradigm. Coal was the fuel of the last 100 years, and renewables will likely be the dominant fuel of the next century for many countries. At the same time, we must recognise that so-called dispatchable power plants — including thermal generation — are key for many countries to ensure energy security during the transition to a cleaner energy system. And so, the Beijing meeting will launch new work to address this challenge.
To succeed, this energy transition will require the full backing of industry. This is why the CEM includes top-level executives from companies involved in all aspects of the energy field who offer a unique on-the-ground perspective and ultimately determine where investments end up going. They are often the first to recognise what drives clean energy uptake.
This is a unique time for the CEM, which is entering a new phase of cooperation and growth in our short history. The world of energy is changing. Facts on the ground unequivocally point to the key role of emerging economies in clean energy. Come the meeting in Beijing June 6-8, we are likely to see this reflected in the leadership of the CEM. (IANS)