Complex sentence: The Devonshire Building, opened in 2004, incorporates in an energy efficient design photovoltaic cells which help to power the motorised shades which control the temperature of the building and geothermal heating coils.
Split into simpler sentences: The Devonshire Building, opened in 2004, incorporates in an energy efficient design. It uses photovoltaic cells to help to power motorised shades that control the temperature of the building and geothermal heating coils.