 The design of Brush's machine allowed it to be shut down manually to protect it from wind damage.The improved design of the turbine built for the Montrose Lunatic Asylum (which was based on Thomas Robinson's anemometer design) went some way towards solving this problem but it could not be guaranteed to stall in very strong winds.In 1891 Blyth presented a paper to the Royal Society of Edinburgh espousing his belief in the benefits of renewable energy sources, particularly wind but also wave energy.