Clever sustainable power strategies cool classrooms across NSW

Key program highlights

  • 716 schools involved in the solar installation project
  • 10.3 megawatts of solar in delivery
  • 60 schools involved in the solar-battery storage project
  • 3.3 megawatt hrs of battery storage in delivery

The NSW Cooler Classrooms Program continues to provide sustainable reverse-cycle air conditioning and ventilation to improve learning environments for staff and students in NSW schools. A key focus of the program is the use of renewable energy sources, with 10.3 megawatts of photovoltaic solar systems being installed at 716 schools through this NSW Public Works and Schools Infrastructure NSW (SINSW) collaboration.

The sustainability of the program was enhanced in 2021-22 with the introduction of the Smart Energy Schools Pilot Project. Targeted schools are now being set up with solar and battery storage systems, further reducing energy consumption and contributing to the state government’s plan to be carbon neutral by 2030. Sixty schools have benefitted from these energy efficient coupled systems to-date.

“These systems can provide for the schools’ energy needs when there is no solar power, and also generate power to the grid in response to market values, therefore providing an income to the school and reducing their need to draw energy from carbon emitting sources,” said NSW Public Works Project Manager Randolph Wild.

To enhance energy efficiency of the air-conditioning systems, SINSW chose three schools to host monitoring and control units that allow the systems to respond efficiently to changing air temperatures and avoid expensive spikes in energy use. Innovative and collaborative thinking has also resulted in a uniform battery system design that allows the system to be easily adapted or relocated from one school to the next.

NSW Public Works collaborated with SINSW from the program’s inception, managing stakeholder engagement, procuring technical consultants and contractors, and providing project management and contract administration services. Our considerable electrical system expertise, school by school data, and state-wide network of project managers, have been key to the ongoing success of the program.

“We are also working with SINSW to provide electric vehicle charging stations to a selection of schools in the program,” said Mr Wild. “This will utilise the energy created by the newly installed solar and battery systems, reduce air pollution, provide cheaper transport options and help tackle the problem of transport emissions, which are second only to those of the energy sector.”

Wambangalang Environmental Educational College

Installation of a 17 kw ground mounted solar that works as a canopy for a 41 kwhr battery storage unit within a specially designated fenced off compound in a school located in a remote part of rural NSW. This allows the school to become part of the Cooler Classrooms Program and provides a ground level educational resource.

Gymea Technical High School

Installation of as much solar as the roof would allow, 87 kw, thus servicing the school’s large energy needs and, with the 46.7 kwhrs battery unit, positioning the school as a significant power plant.

Cooler Classrooms - Solar Storage Battery

Farrer Memorial Agricultural High School

Installation of 99.7 kw of solar and 71.6 kwhrs of battery storage in the spectacular grounds of this grand agricultural school in the Tamworth area.

Read more about the Cooler Classrooms Project here

This article is part of the 2021-22 Year in Review