Andreas Späth

Solar power isn't just for the rich anymore

2013-05-06 13:21

Andreas Späth

Prices for photovoltaic (PV) solar panels are falling globally and soon generating your own electricity by putting a few panels on the roof of your house may become a reality even in South Africa, where small scale solar power has been prohibitively expensive for most until now. What's more, cheap, clean solar energy may provide real solutions for the poorest South Africans who have yet to benefit from access to affordable electricity at all.

There are several reasons why the cost of solar panels is dropping:

- demand is growing worldwide, as is production capacity;

- the efficiency of solar cells is improving constantly through the use of novel technologies, like improved ways of concentrating solar radiation onto panels and mimicking natural processes such as photosynthesis in leafs and the reflective properties of butterfly wings;

- improved manufacturing processes; and

- the use of cheap and abundant new materials and ingredients.

The not too distant future promises major breakthroughs in solar technology, involving 3D printing, fancy substances like graphene and nanotechnology. We may see entire buildings clad in see-trough solar panels and floating solar arrays to rival offshore wind farms.

With a government that insists on pursuing its toxic relationship with coal, nuclear power and (soon) shale gas, sunny South Africa is, of course, unlikely to become a world (or even continental) solar energy leader anytime soon. That's not to say that the technology isn't already having a massively beneficial impact on poor communities elsewhere.

After being heavily damaged by Hurricane Katrina in 2005, the "somewhat rundown low-income" St Thomas Housing Project in New Orleans, has been rebuilt as a solar neighbourhood. All buildings in the eight block area now have solar panels on their roofs, providing the capacity to generate 420 kilowatts of electricity.

In India simple solar micro grids offer low-cost, life-improving electricity in some of the country's poorest rural areas. Mera Gao Power, for instance, installs systems consisting of just four solar panels and four batteries to supply LED lighting and mobile phone charging points for villages of 100 households in rural parts of the province of Uttar Pradesh. By 2016, the company aims to service 100 000 households in this way.

In Kenya, an outfit called M-KOPA Solar sells tiny solar power systems that are big enough to provide lights and mobile phone charging for individual rural households on an affordable pay-as-you-go basis.

While solar-powered lights and phone chargers may be little more than novelty gadgets to those of us used to a steady supply of electricity out of wall sockets, they are proving hugely beneficial to many people. A UK-based charity called Solar Aid has become the biggest seller of solar lights in Africa, having distributed over 400 000 to date.

It may not be immediately obvious to the rest of us, but for people who otherwise depend on candles or kerosene lamps for light at night, the benefits are substantial, reducing fire risks, carbon emissions, indoor air pollution and respiratory diseases, while stimulating microenterprises and improving school results.

Clearly the future of solar energy is bright on scales ranging from industrial-strength power plants and neighbourhood micro grids to individual household systems and hand-held devices. Let's hope someone in the SA government wakes up to that fact soon.

- Andreas freelance writer with a PhD in geochemistry. Follow him on Twitter: @Andreas_Spath

Send your comments to Andreas

Disclaimer:
News24 encourages freedom of speech and the expression of diverse views. The views of columnists published on News24 are therefore their own and do not necessarily represent the views of News24.

NEXT ON NEWS24X

The testimony that sunk him

2014-04-18 07:00

Read News24’s Comments Policy

24.com publishes all comments posted on articles provided that they adhere to our Comments Policy. Should you wish to report a comment for editorial review, please do so by clicking the 'Report Comment' button to the right of each comment.

Comment on this story
10 comments
Add your comment
Comment 0 characters remaining
 

Inside News24

 
 
Traffic
Lottery
 
  • Friday Grabouw - 11:32 AM
    Road name: N2 Eastbound
    DELAYS between Sir Lowrys Pass and Grabouw
  • Friday Cape Town - 10:14 AM
    Road name: M3 Inbound
    EVENT - left lane closed between Rhodes Avenue and UCT
 
More traffic reports...
 

Jobs in Cape Town [change area]

Property [change area]

Travel - Look, Book, Go!

Escape winter, head to Mauritius

Escape winter by spending 7 nights in Mauritius' tropical bliss from R13 215 per person sharing. Includes return flights, airport transfers and accommodation. Book now!

Kalahari.com - shop online today

Get many eggs in one basket!

Gaming bundles: 2 Super Hits games for R99, 3 Disney games for R99 and more + exclusive accessory bundles only available on kalahari.com. While stocks last. Shop now!

25% off bestselling books!

The Real Meal Revolution by Tim Noakes, Jeffrey Archer’s Be Careful What You Wish for, Man’s Search for Meaning by Victor E. Frank and many more titles. Shop now!

Up to 25% off electronics

Buy top electronics and save up to 25%. Such as kalahari.com’s 1# selling product the gobii eReader, Patriot X Porter flash drive, Asus Nexus 7” 3G tablet, Samsung Galaxy SIII, Lenovo G580 Notebook and many more. Shop now!

DStv HD PVR Decoder now R949

The DStv HD PVR Decoder has further revolutionised the television experience with lifelike viewing, sharper images, more vibrant colours and precision picture quality. Now R949, save R550. Offer valid while stocks last. Shop now!

Up to 30% off appliances & homeware

Save up to 30% on appliances and homeware this Easter! Offer valid while stocks last. Shop now.

OLX Free Classifieds [change area]

Samsung Galaxy s4

Mobile, Cell Phones in South Africa, Western Cape, Cape Town. Date October 24

Best bargain in big bay

Real Estate, Houses - Apartments for Sale in South Africa, Western Cape, Cape Town. Date October 25

VW Golf 6, 1.6 Trendline (Excellent condition)

Vehicles, Cars in South Africa, Western Cape, Cape Town. Date October 25

BlackBerry Bold 9780

BlackBerry 6 Engage your world with BlackBerry 6 OS on the...

From R3049.00

I'm shopping for:

Horoscopes
Aquarius
Aquarius

Self-indulgence may be strong today. You may want to enjoy yourself to the fullest and share it with those that make you feel...read more

There are new stories on the homepage. Click here to see them.
 
English
Afrikaans
isiZulu

Hello 

Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.


Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Settings

Location Settings

News24 allows you to edit the display of certain components based on a location. If you wish to personalise the page based on your preferences, please select a location for each component and click "Submit" in order for the changes to take affect.








Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.