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Imogen Heap performs an event completely powered ‘off the grid’

Fruit Pie Music has produced an open air live music event and broadcast to be entirely self-powered (i.e. not using the national grid whatsoever for the entire duration of the event) for Grammy award winning Imogen Heap, which was broadcast live online on ‘Earth Day’ 22nd April 2012. Imogen Heap performed every musical aspect using only her hands and innovative ‘musical gloves’ that have been developed to interact with a virtual orchestra to conduct symphonic performance.

Just under 90% of the energy required across the 10 days on location was provided by solar and pedal power, with the remaining power drawn from a biodiesel generator running on fuel derived from recycled vegetable oil. 23 cyclists were part of the on stage performance, powering part of the stage lighting directly. Firefly Solar provided the solar panels and bike pedal generators to power the event, as well as the LED lighting fixtures for the show. The biodiesel generator was used as a back up to boost the solar generator batteries as the need arose – which turned out to be only 10 hours over the entire course of the week.


 

 

 

 

 

 

 

23 cyclists powering the LED light show


The gig took place inside a Geodesic dome rigged and put up by hand, requiring zero electricity for its construction and deconstruction. Noise pollution was kept to zero through technology developed in partnership between SilentGig and Sennheiser – with spectators wearing headphones, no extra power was required for audio reinforcement. Most of the batteries used were rechargeable, and all batteries were subsequently recycled.

“Through this production we are hoping the industry will take notice of what can be achieved when an artiste driven brief makes a team work together to reduce the power consumption and overall pollution of an event.” - Kumar Kamalagharan, Event Producer from Fruit Pie Music

The production has won two awards: ‘Best Sustainable Initiative’ at the Event Awards 2013, and ‘Green or environmental project of the year’ at the AV Awards 2013.


 

 

 

 

 

 

Mobile solar panel array  as assisting power source


Statistics

  • A total of 230.5 kWh of power was used for the entire project - 203 kWh of this energy was created by the sun and pedalling bikes (88%)

  •  The remaining 27.5 kwh’s were supplied by an overnight charge on the biodiesel generator which used 100 litres (12.5 gallons) of fuel derived from recycled vegetable oil

  • The solar batteries were brought to site with 140 kWh of pre-charged solar energy and a further 60 kWh was generated from the solar arrays on site

  • 3 kWh of power was generated from the bikes over the course of the show and rehearsals


In the planning stages, the following estimates had been calculated:

  •  A total of 235.5kWh across the entire project

  •  140 kWh solar generated energy – this was surpassed by over 60 kWh despite less than favourable weather conditions!

  • 3.5 kWh pedal power generated energy

  • The plan therefore expected around 92 kWh would need to be met by the biodiesel generator – in fact only just over a quarter of this was required thanks to the better-than-expected performance of the solar arrays.



Highlights


Solar

199.5 kWh (86.6%) of the energy required across the 10 days on location was provided by solar power.  140 kWh of this was drawn from pre-solar-energy charged batteries brought to site, while an additional 60 kWh was generated through solar arrays on site despite less than favourable weather conditions.


Pedal

23 cyclists were part of the on stage performance, powering part of the stage lighting directly, generating 3.5 kWh of pedal power directly.


Biodiesel

Biodiesel generators were used to supplement the solar and pedal energy where necessary, using 100 litres (12.5 gallons) of fuel derived from waste vegetable oil and generating 27.5 kwhs (12% of the total energy required across the 10 days on location.



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