It turns out that our performance at the Scottish Dark Sky Observatory was in fact the first ever 100% solar powered concert held in the UK!
All of our equipment was successfully powered using electricity generated from the observatories Solar Photovoltaic, the only hitch being a minor power cut just before the start of the show which was caused by someone making a cup of tea (the kettle was also solar powered!).
It seems incredibly apt that a science-rock concert about Space should be powered entirely by the Sun! Thank you science!