Sydney Opera House
The cost of the project so far, even in October 1966, was still only $22.9 million, less than a quarter of the final $102 million cost. However, the projected costs for the design were at this stage much more significant.
Sydney Super Dome
Various measures were made at the request of the Sydney Organising Committee for the Olympic Games (SOCOG) for environmentally friendly design measures. In its early years, the Sydney Super Dome used renewable energy for a fraction of its power supply, provided by EnergyAustralia's green power scheme. The venue saw use of green power through a deal with EnergyAustralia that lasted the duration of the 2000 Summer Olympics and the five years following. The Super Dome's power architecture includes 1,176 photovoltaic solar panels, installed on the arena's roof, which provide 10% of the venue's daily energy consumption, estimated at ~8612MWh annually. Energy efficient lighting and heating/cooling systems were also installed in the venue. The roof's drainage system consists over 2000m of high-density polyethylene pipes, in addition to nearly 3000m of cast iron and copper pipes used in the venue's plumbing system, and 1000m of vitrified clay pipes that make up the Super Dome's surrounding stormwater drainage system. The Super Dome was also one of many venues built at Sydney Olympic Park that made use of recycled timber, used to construct the exterior balconies of the venue. The timber was sourced from Kempsey, and Oberon, along with local sources in Sydney. Additionally, polypropylene seats with nylon arms and mountings make up the Super Dome's stands.