The GP World100% renewable energy with just one click

100 % renewable energy

You can't get better than that.

And we won’t settle for less. We are convinced that it is possible to supply mankind with unlimited energy from renewable natural resources.

And we will prove that it works:

  • economically and ecologically
  • free from risks and side effects
  • for a future worth living

Food for the fuel cell

Wind and solar gas for direct consumption

Whether at home or for commercial use: stored hydrogen can be "converted back" to energy at any time using a fuel cell.

Hydrogen can be stored in gas tanks with up to 30bar, making it available at any time.

Into the pipeline!

Hydrogen in the gas distribution system

Because hydrogen can be mixed with natural gas, it can be fed into the existing distribution system.

In the form of hydrogen, the entire quantity of wind energy from 2009 would only make up a proportion of around 7% in the natural gas distribution system.

This is a major advantage, as the infrastructure for carrying and distributing the energy is already in place – and transportation is possible, even over long distances.

Energy times two

Hydrogen in block-type thermal power stations

The storable wind or solar gas is perfect as an environmentally-friendly fuel in block-type thermal power stations for decentralised energy and heat supply.

When burned, it powers generators or turbines which generate energy. This creates usable waste heat. The CO2-neutral energy can be fed into the mains network.

One of many ways GP JOULE uses to get involved in the truest sense of the word.


On the move with hydrogen

Hydrogen can even be used to get you on the move: cars of the future run on a fuel cell drive and are filled up directly with storable gas instead of diesel or petrol.

The water released during the conversion to electric energy is fed out of the exhaust – the best way to improve air quality.

The exciting question:

feed in or store?

The energy produced can largely be fed directly into the mains network. In the future, "smart grids" technology will also increase the proportion of energy used right away.

In order to increase the proportion of renewable energy and make energy available when needed, part of the energy must be stored. Until now, this has been extremely expensive to do.

GP JOULE has the solution ...

The future in a box

PEM electrolysers from H-TEC

The hydrogen generators from our subsidiary H-TEC act like a fuel cell – only in reverse – and are the key to achieving a renewable energy supply.

The technology behind the solution is electrolysis: electric energy is used to split the water into hydrogen and oxygen with an efficiency of up to 75%. PEM electrolysis is particularly suited to fluctuating energy sources (solar and wind).

H-TEC is the first company to succeed in bringing an energy store of this kind to series production!

The hydrogen contains built-up energy which can be used in a variety of different ways.

Gloomy prospects:

The energy world of the past

  • high-risk nuclear power
  • damaging CO2 emissions from coal and gas
  • diminishing resources

It can't go on like this – we are working on the future!

Energy from the neighbourhood

District heating from biogas

District heating from biogas benefits the environment twofold:

  • burning in block-type thermal power stations is climate-neutral
  • a "waste product" is put to good use

Doubly good:

energy and heat at the same time

It's not only energy that is generated in a block-type thermal power station: the waste heat generated during this process is used instead of wasted (e.g. as district heating).

For this reason, it is important that block-type thermal power stations are built close to heat consumers as part of decentralised energy supply.

Let there be light!

Solar energy has a future

Solar power plants generate energy from sunlight.

GP JOULE has specialised in open area projects with numerous MW – from the initial idea to long-term yields:

Our services:

  • Engineering
  • Finance
  • Realisation
  • Commercial/technical management

Immense power

Energy from wind power

Converting the movement of the wind into electric energy – we are experts in the field. We accompany MW-class projects on the road to success along the entire value chain:

Our services:

  • Engineering
  • Finance
  • Realisation
  • Commercial/technical management

In mass production

Green bio-energy

The human race has a constant supply of renewable, organic raw materials for energy production. We’ve got it covered!

Our services:

  • Engineering
  • Finance
  • Realisation
  • Commercial/technical management

The pioneers in progress

A goal in sight

"System construction is not our only strength. Our strength lies in solutions of the future."

We have our own company division dedicated to the concepts of tomorrow, focusing mainly on storage solutions and the corresponding infrastructure.

In this work, we rely mainly on the hydrogen technology of our subsidiary company H-TEC which is ready for series production.


Shining fields: GP JOULE has specialised in MW-class photovoltaic projects in the solar energy field, which generate power as far as the eye can see.  more


Heavenly views: From individual wind turbines to large-scale parks, GP JOULE makes sure that the power of tomorrow is not running out of steam. more


High yields, naturally: Biogas plants generate power from renewable raw materials. The heat generated in this process can be used intelligently – we know how it works. more


In the green: Investments in renewable energies not only pay off for the environment, but also generate attractive profits. more

Future Strategies

Keeping up with the times: We develop comprehensive energy solutions for both storage technology and infrastructure and focus on the technologies of tomorrow.  more

  • Solar energy
  • Wind energy
  • Biomass
  • Investments
  • Future Strategies

Non-stop powerThe power gap filler

GP JOULE has the solution: a combination of biogas and electrolysis delivers a 100% regenerative power supply around the clock thanks to an intelligent storage method.

More information

In their elementsGP JOULE and Robby Naish

Using the power of nature successfully — that is what unites GP JOULE and Robby Naish. That’s why the surfing legend has been the company’s official brand ambassador since the fall of 2014.

Read more

Room for the futurein Canada and the USA

Our North American team is delighted with its new offices, which see us further expand our activities abroad. Find out how to get in touch with our local representatives:

Premiere in CaliforniaFirst US project on the grid

Our first project in the USA, the “Paraiso Vineyards” solar farm – a 433.5-kW net metering facility – officially went into operation on October 30, 2014.

Bonjour, future!Our solar farms in France

Pompogne, Aquitaine and Biscay – GP JOULE has already realised a 168-MW increase in generating capacity on French soil. Because it’s not just the climate condition that is perfect here …

Learn more

It’s got the knackThe PHLEGON®mover

Up to 20% more energy efficiency: thanks to its intelligent tracking unit, the GP JOULE PHLEGON®mover ensures that your solar modules are always perfectly aligned with the sun over the course of the day. 

Company news


Successful appearance in the Hanseatic city:

GP JOULE exhibits at WindEnergy Hamburg


„On the same wavelength“

Windsurfing legend Robby Naish will be GP JOULE’s new brand...


On the way to 100% renewable energies:

GP JOULE awarded with SolarSuperStatePrize 2014 in the...


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