• No_Ads
Science & technology
Solar sector small but growingPublish Date: Dec 11, 2013
Solar sector small but growing
  • mail
  • img
Picture taken on May 31, 2010 shows an employee of German solar cells manufacturer Solarworld posing with a solar cell in the eastern German city of Freiberg on May 31, 2010 as the new wafer plant commenced production. FILE PHOTO BY AFP

NEW YORK - Solar power, only a minuscule part of the energy mix in the United States, is getting a boost from cheap panels, growing acceptance by large companies and chances for homeowners to rent solar systems.
Analysts expect a phenomenal growth for renewable solar power over the next two decades, after huge gains in the past two years: 60 percent growth in 2012 and 30 percent on top of that this year.
Heavily reliant on oil, natural gas, coal and nuclear, the United States only gets 12 percent of its power from renewables, of which solar is the smallest part, less than one percent.
But the sector is expanding faster than any. There's no question, says Charles Ebinger of the Brookings Institution, that solar energy "will continue to grow quite dramatically."
Technology to convert sunlight growing
The US Energy Information Administration predicts that photovoltaics -- the semiconductor technology that converts sunlight into electricity -- will grow 11.6 percent a year through 2040.
On top of that, it also predicts 3.6 percent annual growth for solar thermal energy, which uses vapor from water heated by the sun to drive turbines.
By comparison, wind power is expected to grow at two percent a year and geothermal power at four percent a year.
Boost from price of photovoltaic panels
Ebinger attributes solar power's fast growth to a decrease in the price of photovoltaic panels in a generously oversupplied market, making the energy source more competitive with other types of renewable energy.
Additionally, the possibility for homeowners to simply rent panels rather than purchasing them has helped their popularity.
Around 55 percent of US demand for solar panels currently comes from power generating companies.
Another 30 percent comes from businesses that have large buildings and massive rooftops where installing solar systems for their own power makes sense.
This includes companies like retail giant Walmart, and Google, which puts the panels on top of its huge data centers.
The rest of demand comes from the residential sector.
Large obstacles still dot the road forward 
Ebinger said connecting solar power to existing electricity distribution networks requires substantial investment.
Solar power parks, built with thousands of panels in a single location to generate power, are often located in sparsely populated areas such as the deserts of the American southwest, far from industrial centers and household consumers.
Storage is another problem, because batteries remain expensive and very large.
SolarCity, the leading builder of solar electricity systems, is partnering with electric-car maker Tesla Motors to improve solar power storage, especially for private homes. Tesla's founder and chief executive, inventor Elon Musk, is chairman of SolarCity.
Storage is the key challenge.
"You can rely around the clock on hydrocarbons, nuclear or even hydroelectricity," said Morningstar analyst Stephen Simko. But "with solar, when there is no sun there is no power."
Even if the threat of global warming makes using alternative energies more crucial, Simko said, on a purely economic basis, hydrocarbons are much cheaper and more profitable to work with.
"There is the issue of climate change, but if we are still talking about economics," he said, solar "is much more expensive and capital-intensive."
That is why governments need to continue supporting the sector, said Simko.
"The entire solar market in the US and rest of the world is based on tax credits and subsidies."
California benefits from supportive legislation
California is the largest producer of solar energy thanks to supportive legislation and favorable tax set-ups, followed by Arizona and New Jersey.
Angelo Zino, an analyst with S&P Capital IQ, expects that by the 2020s, solar power will account for five percent of the electricity generated in the United States.
And Ebinger estimates that solar's growth could drive renewables to 20 percent of the entire energy market by 2030-2035.

The statements, comments, or opinions expressed through the use of New Vision Online are those of their respective authors, who are solely responsible for them, and do not necessarily represent the views held by the staff and management of New Vision Online.

New Vision Online reserves the right to moderate, publish or delete a post without warning or consultation with the author.Find out why we moderate comments. For any questions please contact digital@newvision.co.ug

  • mail
  • img
blog comments powered by Disqus
Also In This Section
WhatsApp passes 500 million active users
WHATSAPP while announcing that the app has 500 million active users, has been adding around 25 million new active users every month, a pace that isn’t slowing...
Twitter’s new design available for all
AFTER announcing its new Facebook-inspired profile pages earlier this month, Twitter is finally rolling out the new look to all of its users...
Twitter blocks accounts critical of Turkish gov’t
TWITTER appears to have blocked two anonymous accounts that were used to release secretly recorded conversations implicating Turkish Prime Minister Recep Tayyip Erdogan and senior government officials...
Galaxy S5 fingerprint sensor hacked
THE fingerprint security on Samsung's flagship Galaxy S5 phone has been hacked by a German team, who warn that its implementation is less secure...
Facebook to launch e-money transfer service
FACEBOOK is preparing a money transfer service in Europe that would allow it to compete with the likes of Western Union, while giving users the option of storing money with the social network...
First Earth-sized planet found in
An international team of researchers has discovered the first Earth-sized planet within the "habitable zone" of another star in a hunt for potential life in outer space....
WIll the national ID registration process be completed in the scheduled 4 months timeframe?
Can't Say
follow us
subscribe to our news letter