Install solar on your building in South Australia — Quarter

In New Zealand? Visit quarter.nz for body corporates.

The roof is already there.

Australia and New Zealand put solar on more detached houses than almost anywhere on earth, and almost none on apartment buildings. Not because the roofs are wrong — because nobody owns the decision. A building's roof is common property, the power bill it would offset is a common cost, and the paperwork sits with a committee that has enough to do. That is a solvable problem, and in several states somebody will pay for half of it.

Install solar on your building in South Australia

South Australia has the highest share of renewable generation of any Australian state, which cuts both ways for a building considering solar: the resource and the installer market are excellent, and the value of exporting power in the middle of the day is low. The consequence is simple — in South Australia, solar that offsets the building's own daytime consumption is worth far more than solar sized to export.

Governed by the Strata Titles Act 1988 and Community Titles Act 1996, administered by Consumer and Business Services.

At a glance — SA

Main funding
No South Australian apartment-specific solar grant is currently open. Federal STCs apply and are taken off the quote.
Market context
Very high renewable penetration means low midday export value — self-consumption is where the return is.
Design implication
Size to the building's own daytime load. Over-sizing to export pays back slowly here.
Decision needed
A general meeting resolution — the roof is common property.
Which Act
Strata Titles Act 1988 or Community Titles Act 1996, depending on how your scheme was created.

What is available in SA.

Programmes open, allocate and close, and the terms change between rounds. Check the current position with the administering body before you budget around any of these.

Australian Government

Small-scale Renewable Energy Scheme (STCs)

The national certificate scheme discounting the up-front price of a system. Applied by the installer at the quote stage.

Official page

Government of South Australia

SA Department for Energy and Mining

Current South Australian energy programmes and any open household or building support. Rounds appear periodically — worth checking before you finalise the budget.

Official page

How to do it in South Australia.

  1. 1

    Get the common power bills and the daytime profile

    In South Australia the self-consumption number is the whole business case.

    In Quarter: The building's common property spending is already in Quarter — this year's power bills and the two years before them — so the figure the whole business case rests on is one you pull rather than reconstruct from a drawer.

    Get the common power bills and the daytime profile in Quarter
  2. 2

    Size to the load

    An array matched to the building's own daytime consumption beats a larger one exporting at a low rate.

  3. 3

    Confirm which Act you are under

    Strata or community titles. It changes the meeting procedure and the common property rules.

  4. 4

    Check the roof

    Remaining life and condition, before anything is mounted on it.

  5. 5

    Put a costed motion to a general meeting

    Consumption, quotes, saving, funding route, minuted properly.

    In Quarter: Build the motion from the quotes and the budget, send the notice to every owner off the ownership register on the statutory clock, and record the vote as it is cast — a decision carries its majority automatically and emails the outcome to whoever raised it.

    Put a costed motion to a general meeting in Quarter
  6. 6

    Build the replacement into the sinking fund

    South Australia does not mandate a 10-year plan, so nothing but the corporation itself will prompt this.

    In Quarter: Upload the plan you already have and Quarter reads it into a costed schedule of items, lifecycles and due years. From there it projects the fund thirty years out and tells you the annual contribution that actually funds it.

    Build the replacement into the sinking fund in Quarter

Where SA buildings get caught.

Designing for export

In the highest-renewables market in the country, midday export is the least valuable kilowatt-hour you can produce.

Skipping the roof inspection

Removing and reinstalling an array is a cost with no offsetting grant.

No provision for the inverter

It will need replacing before the panels do.

Why solar pays differently in an apartment building

A house puts solar on to cut one household's bill. A building puts solar on to cut a bill every owner is already paying through their levies — lifts, lighting, pumps, ventilation, the car park. That common load runs during the day, which is exactly when the panels produce.

Common power is a daytime load
Lifts, corridor lighting, pumps and ventilation run while the sun is up. The match between generation and consumption is better in an apartment building than in most houses.
It reduces levies, not just a bill
Every dollar off the common power bill is a dollar that does not have to be raised from owners. That is the argument that carries a general meeting.
The roof is doing nothing else
In most buildings the roof is an asset with no use and a maintenance cost. Solar is the cheapest way to make it earn.
Grants exist here in a way they do not for most common property work
Almost nothing else a building has to do comes with public co-funding. Solar frequently does.

How Quarter gets the panels on

The physical job takes a few days. The decision takes most buildings a year. Quarter compresses the second one.

Build the case from your own numbers

Your actual common power spend, from your actual bills, rather than a vendor's estimate of a building like yours.

Get a motion owners will pass

Scope, cost, funding, and the effect on levies — put as a resolution rather than a proposal, with the quotes attached.

Hold the evidence a grant application needs

The resolution, the quotes, the scheme details and the consumption history, in one place, on the day the round opens.

Track the project through to commissioning

Quotes, contracts, approvals, invoices and warranties recorded against the decision that authorised them.

Show owners what it did

The bill before and the bill after, visible to every owner, so the next project is an easier conversation than this one was.

Questions we get asked.

Who gets the power — the building or the apartments?
Both models exist. The simplest is to offset common property load only: the system feeds the building's own supply, and the saving shows up as a lower common power bill. Sending power to individual apartments requires either an embedded network or a solar-sharing arrangement, which is a bigger project with more moving parts.
What if the roof needs work?
Then do the roof first. Installing panels over a roof with five years left in it means paying to remove and reinstall them. This is the most common sequencing mistake in the whole project.
Do we need everybody to agree?
No — you need the resolution the legislation requires, which is usually an ordinary majority at a general meeting where the strata corporation funds work on common property. Unanimity is not the test, and waiting for it is why buildings never start.
What about batteries?
Usually a second stage. Get the generation in first, see the real consumption pattern for a year, then size storage against it rather than against a guess.

Where this comes from

General information about South Australia, not legal or financial advice for your building. Legislation is amended and grant programmes open and close — check the current position with Consumer and Business Services or the administering body before you act on anything here.

Install solar — elsewhere

Other things to get done in SA

Get this one off the list.

Tell us about your building in South Australia and we will show you exactly how Quarter would run it.