• Germany edition
 
German of the Week
'Giant marbles' could power our homes
Andre with the Rawlemon sphere. Photo: Rawlemon

'Giant marbles' could power our homes

Published: 27 Feb 2014 15:47 GMT+01:00
Updated: 27 Feb 2014 15:47 GMT+01:00

Last week, Broessel's project reached its $120,000 target on crowd-funding site Indiegogo, miles before deadline.

By Thursday he had raised $155,000.

The spheres, made from glass and acrylic, have no photovoltaic cells like a regular solar panel. They simply act like lenses to focus energy from the sun.

“We're in talks with manufacturers in Taiwan, and I think we have sorted something,” the 46-year-old architect told The Local.

Appearing to be a giant see-through ball hanging in a bracket, and known as Rawlemon, Broessel explained, it squeezes energy out of the sun, hence the name Rawlemon.

"The sphere collects sunlight and converts it into energy," he said, adding that it could even collect and convert moonlight, although not enough to power anything.

The idea came to Broessel one day at the breakfast table years ago.

“I was watching my daughter put a marble in an egg cup,” he said. “It was a Sunday and I saw the focal points moving on the sphere, and a project was born.” An eye, he said, works in a similar way.

And unlike regular solar panels, which not only take up a lot of space and do not, arguably, look as good as Rawlemon, a sphere can remain stationary.

“It was this optical tracking that was the real breakthrough,” he said.

In 2008 his clients started asking for smart, energy saving technology for the homes he was designing for them and he began putting his plan, inspired by his daughter playing, into action.

Nearly six years later with German government money and the crowd-sourcing campaign later, Rawlemon should soon be ready to power a house.

“A household with two adults and two children would need about three spheres to provide all their daily energy. This would cost about €10,000,” said Broessel. This would mean minimal to no energy bills.

Born near Düsseldorf, the father-of-two hopes that his invention will offer a more environmentally-friendly energy alternative that could prove especially popular as Germany shifts over to more renewable energy.

“I am currently waiting to see if I will get the model patented,” he said. “I was the first person to make something like this, and I'm sure I'll get the patent,” said Broessel. “I fought for it."

He admitted that what the company needed at this point was an industrial partner.

“We need this to overcome the costs of the first two to three years and to reach competitive prices,” said Broessel, who now lives in Barcelona.

But there is another problem that stands in Rawlemon's way.

“The energy industry is trying to block our project,” said Broessel. For now, all he can do is make contact with power companies - meetings with a few in Spain are already lined up - and hope for the best.

“If we want to reach the goals we have, we have to give it time,” he said. “Our team is growing and I hope in the future we can help make buildings more efficient, with lower operating costs.”

SEE ALSO: Energy bosses reveal 800km power link route

For more stories about Germany, join us on Facebook and Twitter

Jessica Ware (jessica.ware@thelocal.de)

Don't miss...X
Left Right

Your comments about this article

Today's headlines
Coalition horsetrading starts after Saxony vote
CDU leader Stanislav Tillich with SPD Martig Dulig. Photo: DPA

Coalition horsetrading starts after Saxony vote

Chancellor Angela Merkel's Christian Democratic (CDU) party is in search of a new partner after the expulsion of its former allies the Free Democrats (FDP) from the Saxon state parliament. READ  

Presented by Phorms Education
Bilingual education from nursery to graduation
Photo: Phorms Education

Bilingual education from nursery to graduation

A network of German based schools is changing how students learn languages by introducing English and Deutsch from day one, with the method yielding impressive academic results. The Local finds out more about Phorms Education. READ  

JobTalk Germany
'German bosses need to praise more'
More of this? Photo: Shutterstock

'German bosses need to praise more'

What do German bosses need to do to get more out of their staff? Frankfurt-based business consultant Justin Bariso has this advice. READ  

Germany to send Kurds weapons shipment
German soldiers training with machine guns. Photo: DPA

Germany to send Kurds weapons shipment

Chancellor Angela Merkel is to address the Bundestag on Monday to detail the weapons her government will send to Iraqi Kurds fighting terrorist group Isis. READ  

Train drivers take their turn to strike
A banner announcing a previous rail strike in June is displayed in a station. Photo: DPA

Train drivers take their turn to strike

A train drivers' union has warned of a nationwide strike to take place on Monday evening as it seeks leverage in negotiations with Deutsche Bahn. READ  

Weak exports hit German GDP
Germany isn't sending as many goods abroad as at the beginning of the year. Photo: DPA

Weak exports hit German GDP

GDP fell by 0.2 percent in the second quarter of 2014 but state coffers are doing well, the Federal Office of Statistics Destatis announced on Monday. READ  

Anti-euro breakthrough
Anti-euro AfD nears 10 percent in state election
AfD politicians Hans-Olaf Henkel MEP and leader Bernd Lucke, celebrate the party's success in Saxony on Sunday. Photo: Daniel Naupold/DPA

Anti-euro AfD nears 10 percent in state election

UPDATED: Germany's anti-euro party, AfD, won its first seats in a state parliament on Sunday after elections in Saxony, according to preliminary results. READ  

Berlin to open memorial to Nazis' disabled victims
Auschwitz. Photo: DPA

Berlin to open memorial to Nazis' disabled victims

Benjamin Traub, a sad-eyed German boy born in 1914, was considered a bright child by his parents and called gifted by his teachers. His life would end in a Nazi gas chamber. READ  

Anti-euro party to debut in state parliament
AfD leader Bernd Lucke celebrates his party's EU election results. Photo: DPA

Anti-euro party to debut in state parliament

Germany's fledgling anti-euro party looks set to win its first seats in a state parliament on Sunday, gaining a political foothold in opposition to Chancellor Angela Merkel's grip on power. READ  

Stakes rise in Oracle-SAP copyright fight
Photo: DPA

Stakes rise in Oracle-SAP copyright fight

US appeals court on Friday ruled that Oracle be given a choice between $356.7 million or a new trial for its copyright lawsuit against German rival SAP. READ  

RECEIVE OUR NEWSLETTER AND ALERTS
Sponsored Article
Bilingual education from nursery to graduation at Phorms
Photo: Shutterstock
Gallery
Ten of the oddest things found by German border control
Photo: Gerkan, Marg and Partners/Tegel Projekt GmbH/J. Mayer
Berlin
How will Berlin look in five years' time?
Photo: DPA
Culture
Sprechen Sie Deutsch? 10 reasons why you should
Photo: DPA
Gallery
The best of Berlin's mayor Klaus Wowereit in 14 pictures
Photo: DPA
Politics
Germany sends burgers and sausages to Kurds
Photo: Matthias Kock
National
Tribes, ties and a movie: A German's Afghan life
Photo: DPA
Gallery
10 things to do before summer in Germany is really over
Photo: DPA
Gallery
The mysteries of Berlin's abandoned theme park
Photo: Europeana.de 1914 - 1918
Gallery
A German soldier's life behind WWI lines
Photo: DPA
Business & Money
JobTalk: All you need to know about working in Germany
National
Share news tips with The Local Germany
Latest news from The Local in Austria

More news from Austria at thelocal.at

Latest news from The Local in Switzerland

More news from Switzerland at thelocal.ch

Latest news from The Local in Denmark

More news from Denmark at thelocal.dk

Latest news from The Local in Spain

More news from Spain at thelocal.es

Latest news from The Local in France

More news from France at thelocal.fr

Latest news from The Local in Italy

More news from Italy at thelocal.it

Latest news from The Local in Norway

More news from Norway at thelocal.no

Latest news from The Local in Sweden

More news from Sweden at thelocal.se

3,418
jobs available
Toytown Germany
Germany's English-speaking crowd