NSW school’s 151kW solar system made in the shade

A NSW school has overcome heritage restrictions and the shading from a 25 meter gum tree to install a 151kW rooftop solar system and drastically cut its energy costs.

The Mater Dei School for children with special needs at Camden was awarded federal government funding to install a rooftop solar system that would help provide the power required to keep the school’s hydrotherapy pool heated to 30°C.

But the $335,000 grant had not accounted for the school’s heritage restrictions on some of the site buildings, or for the 50 year old forest red gum that caused significant shading at certain times of the day on the only available roof space.

Solgen Energy Mater Dei solar installation
A aerial shot of the solar installation at Mater Dei school for children with special needs shows the 50 year old forest red gum at the right and the main solar installation on the roof of the administration block. Remote monitoring of the scheme is displayed in the reception area allows parents and visitors to see the effectiveness of the panels. (Picture: Solgen Energy)

To get around this problem, project installer Solgen Energy used Trinasmart solar panels, which would allow each module surface to operate independently so that the shaded panels would not have a detrimental effect on the overall system.

The successfully installed solar system now delivers 151kWp and will generate an estimated 196.6MWh per year – enough to cover a substantial amount of the school’s electricity needs.

The school solar system also includes a monitoring device in the school’s reception area, which displays how much energy is being produced in real time, for students and parents to see.

Comments

8 responses to “NSW school’s 151kW solar system made in the shade”

  1. Rob G Avatar
    Rob G

    As I travel to work via train, I find myself looking at the huge number of panels that Knox Grammar have. Even a wealthy school, like this, can see the sense of going solar. They must be generating some serious power, maybe nearly 300kW? Clearly the savings are coming thick and fast as there is an explosion of new building projects underway.
    I suspect the battery storage is not far behind.

    1. adam Avatar
      adam

      why would wealthy people not see economic sense?

      1. Miles Harding Avatar
        Miles Harding

        They’re too busy building over-bearing houses that are principally intended dominate their neighbor’s over-bearing house.

        I suspect that, if you think that one of these block-filling concrete and glass monstrosities is the ultimate in residential bliss, it would follow that social and environmental responsibility is not very high on your priorities.

      2. Rob G Avatar
        Rob G

        Strangely they (wealthy) do. In fact, some articles suggest wealthy Liberal voters just love solar and tend to be the bigger % of the customer base. That in itself, is a surprising fact, as normally solar is thought of as a way for less financially able people to manage their power bills. For me that was the case and by getting solar I’ve keep my power bills manageable.

        I know of one such couple that have their heater/aircon running all day long (while they’re at work – stupid?!!) so that they come home to a nice cool/warm house. When asked, why don’t they bother putting timers on or try putting it on when they get home, their answer is that they don’t care because they can afford it.

  2. Jacob Avatar
    Jacob

    This school and other government funded schools should have been banned from using imported solar panels. Thereby forcing them to use locally made Tindo ones.

  3. Tim Buckley Avatar
    Tim Buckley

    Great story. Wonderful to see the expanding role of distributed solar energy. With our record high retail electricity prices, there will be lots more coming, rapidly. This is an inspirational program. If only it was part of a wider government plan to enhance and modernize our grid in the most cost effective way possible. Distributed smart energy will continue to erode the need for fossil fool subsidies to the massively oversized and antiquated, centralised grid transmission structure of Australia. Think of all the savings Australian utility rate payers can make as we transform our electricity system. Distributed solar with storage will lead this process and drive retail electricity prices down.

  4. Miles Harding Avatar
    Miles Harding

    Like it!
    The public area monitor is a great idea, something I would like to see a lot more of so we are reminded of the importance of energy and the need to use it efficiently.

  5. Ian Avatar
    Ian

    Did I read correctly, the Mater Dei School installed photovoltaic panels to generate electricity to heat their hydrotherapy pool. Is this the most cost effective way to heat pool water? I would have thought direct heating of the water using pool solar thermal collectors would be Cheaper and more efficient.

Get up to 3 quotes from pre-vetted solar (and battery) installers.