Sun Ray is an investigation of light as a physical and symbolic source of illumination for life.
It is a place for reflection, relaxation, learning, and play – and it is a linear Fresnel reflector solar power plant that provides heat and electricity for hundreds of homes in St. Kilda.
A round solar field of parallel flat mirrors (a “specular sun” 85 meters in diameter) reflects the sun’s rays and converges them onto a linear absorber of solar power .
This dynamic canopy is composed of linear mirror rows equipped with a single-axis tracking system to ensure that sunlight is always concentrated on the linear receiver.
Changeable light under the canopy creates a constantly fluctuating space as the mirrors vary their inclination throughout the day.
Sun Ray is a new symbol of renewable energy, lighting the way to the State of Victoria’s zero-greenhouse gas target. It is also a cultural attraction for Melbourne: the seductive play of light and shadows creates a welcoming place for walking, playing, performance, screenings, and family picnics.
Its light and airy form emphasizes the views from The Esplanade towards St. Kilda Beach and the Port Phillip Bay horizon.
A power block below grade houses the equipment and support facilities necessary to convert captured solar energy into electricity, or deliver district heat to the city grid.
The floating canopy overlays the park of the latest St. Kilda Triangle Masterplan, maintaining its topography and landscape while forming an open pergola which acts as a filter for light effects, air, and atmospheric phenomena.
At night, the luminous line presents itself to the dark as a new and ideological symbol of the place.