GEM-TOWER
The GEM – Tower is a green energy solution for festivals to replace fossil fuels and will help festivals to be more sustainable.
FACTS AND FIGURES
Specs of the tower:
- Height = 21 meters
- Base diameter = 10 meters
- Wind turbine = Darrieus-Savonius Vertical Axis, 3kW
- Battery = 25 VRLA cells, 30 kVA, 90kWh
- PV panels = Semi Flexible, PERC cells, 10 kW
Did you know:
- More than 3.500 kg of steel has been used to build the GEM-Tower
- There are over 300 hinges placed in the tower
- 542 bolts and nuts are required
- The height of the triangles becomes 14 times bigger after folding out the tower (from 96 centimeters to aprox. 14 meters)
- The 700 kg vertical wind turbine is places at a height of 18 meters
- Nearly 20m² of colored solar panels (LSC panels) are incorporated in the tower
- The tower does not have to be anchored
- 2.7 m³ of concrete was used as a counterweight
- 10 companies from 3 different European countries are involved in this project
- An estimated 100 people contributed to the realization of the first GEM-Tower
- The 90 kWh GEM Tower’s battery can charge one iPhone up to 6000 times – that’s 16 years of charging your phone daily
- In summer, the GEM solar system can charge a Tesla Model 3 up to 30%
GEM-TOWER ON TOUR
GEM-TOWER AT CIRCUIT ZANDVOORT (OCTOBER 2020)
From October 2nd until October 4th, GEM was located at EV Experience (the Netherlands). An event dedicated to electric vehicles. In this video, we are talking to Paul Schurink (ZAP Concepts) about the heart of the GEM-tower: The battery. We’re also speak with Maarten Pompen, organizer of EV Experience about bringing the GEM-tower to the event.
GEM-TOWER AT PRAHA ZARI FESTIVAL PRAGUE (SEPT. 2020)
From September 15 until September 20, the GEM-Tower was located at the Zari Festival Prague in Chzech Republic. You can read a daily update by clicking here.
GEM-TOWER AT PALEIS SOESTDIJK (AUGUST 2020)
From August 12th until August 30th 2020, GEM is located at Paleis Soestdijk (the Netherlands) to run tests. In this video we are speaking with Anne Schaepman, director of Paleis Soestdijk, and Floor van Schie, who is part of the GEM team. We also interviewed visitors of the park on their view of the GEM-Tower and the use of sustainable energy.
GEM-TOWER AT DE HOGE VELUWE (JULY / AUGUST 2020)
From July 1 until August 9, the GEM-Tower was located at the Hoge Veluwe National Park in the Netherlands. In this video Henk Ruseler, forester at the National Park, and Faas Moonen, GEM architect, talk about design and sustainability.
GEM-TOWER PARTNERS

The GEM-Tower is a green energy solution for festivals to replace fossil fuels and will help festivals to be more sustainable.
SPECS OF THE TOWER
Height
21 meters
Base diameter
10 meters
Wind turbine
Darrieus-Savonius Vertical Axis, 3kW
Battery
25 VRLA cells, 30 kVA, 90kWh
PV panels
Semi Flexible, PERC cells, 10 kW

DID YOU KNOW
More than 3500 kg of steel has been used;
There are more than 300 hinges in the tower;
542 bolts and nuts are required;
The height of the triangles becomes more than 14 times more after folding out (from 96 centimeters to more than 14 meters);
There is a 700 kg vertical wind turbine at 18m height;
There are almost 20m² of colored solar panels (LSC panels) incorporated in the tower;
The tower does not have to be anchored;
2.7 m³ of concrete was used as a counterweight;
10 companies from more than 3 different countries worked together on this project;
An estimated 100 people contributed to the realization of the first GEM tower;
The 90 kWh GEM Tower’s battery can charge one’s iPhone 6000 times – that’s 16 years’ worth of charging if one charges the phone daily;
In the summer the 10 kWp GEM Tower’s solar system can charge one’s Tesla Model 3 and give it 180 km range on pure solar power;
PARTNERS
FAAS MOONEN
Eindhoven Univeristy of Technology (TU/E)
JAN DOUWE KROESKE
Double 2 BV Mediaproducties
ROBBIE SCAUT
The Factory CVBA – VSO, Pukkelpop
DANNY JONES
Off Grid Energy Limited, OGE
ROB SCULLY
RPS Conservation Services, RPS
DAGO HOUBEN
Noorderslag Foundation, ESNS / EPIC
HUBERT VON HEIJDEN
PP Flexotels BV, Flexotels
PAUL SCHURINK
PP ZAP Concepts, ZAP
GEM-TOWER ON TOUR
GEM-TOWER AT CIRCUIT ZANDVOORT (OCTOBER 2020)
From October 2nd until October 4th, GEM was located at EV Experience (the Netherlands). An event dedicated to electric vehicles. In this video, we are talking to Paul Schurink (ZAP Concepts) about the heart of the GEM-tower: The battery. We’re also speak with Maarten Pompen, organizer of EV Experience about bringing the GEM-tower to the event.

GEM-TOWER AT PRAHA ZARI FESTIVAL PRAGUE (SEPT. 2020)
From September 15 until September 20, the GEM-Tower was located at the Zari Festival Prague in Chzech Republic. You can read a daily update by clicking here.
GEM-TOWER AT PALEIS SOESTDIJK (AUGUST 2020)
From August 12th until August 30th 2020, GEM is located at Paleis Soestdijk (the Netherlands) to run tests. In this video we are speaking with Anne Schaepman, director of Paleis Soestdijk, and Floor van Schie, who is part of the GEM team. We also interviewed visitors of the park on their view of the GEM-Tower and the use of sustainable energy.
GEM-TOWER AT DE HOGE VELUWE (JULY / AUGUST 2020)
From July 1 until August 9, the GEM-Tower was located at the Hoge Veluwe National Park in the Netherlands. In this video Henk Ruseler, forester at the National Park, and Faas Moonen, GEM architect, talk about design and sustainability.