The $23 million pop-up facility was built on Garran oval next door to Canberra Hospital at the onset of the pandemic, initially slated as an overflow emergency department designed for COVID-19 patients.

It has never served its intended purpose but has allowed thousands of Covid swabs to be taken and vaccinations administered.

"It's been very effective and diverse in its use," ACT Chief Minister Andrew Barr said.

With the opening of the AIS arena which has much larger capacity for vaccinations, about 24,000 each week, the surge centre will be readied for its next appointment.

"I suspect that its next most likely use is as a testing centre, but we'll make some further announcements on that in due course, Mr Barr said.

"It does, of course, also free up the surge centre to be used as a testing centre or treatment centre down the track."

There are 10 COVID-19 patients in hospital after one person was discharged overnight. A woman in her 40s remains in a critical condition.

One of those people have had one dose of vaccine and the rest are not vaccinated.

Hospitalisations are expected to increase as the caseload grows. Health Minister Rachel Stephen-Smith told reporters on Friday about 20 per cent of infected people required some form of medical care through the first wave of the virus.

A mental health ward has also been cleared at Calvary Public Hospital to prepare for Covid patients.

The ACT receives about 17,000 Pfizer doses weekly at the moment, with an increase expected through September and again in October.

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"The capacity to deliver 24,000 a week that the AIS arena provides gives us room to vaccinate more people, more quickly," Mr Barr said.

September will mark the long-awaited ramp-up in Australia's vaccine rollout with Moderna to become available at the end of September in pharmacies.

"We would anticipate that GPs will also have increased Pfizer supplies through October and November," Mr Barr said.

Based on federal government projections, the ACT government could expect up to 23,000 doses of Pfizer each week from October while doses handed to general practice and pharmacies would more than double.

Mr Barr has remained adamant the territory will shoot beyond 80 per cent vaccination targets, and intends to get there before any other jurisdiction.

"We want to get there ahead of the rest of the nation and then go beyond," he said.

"The vaccination program doesn't stop when we reach 80 per cent, it continues on until we have vaccinated every single Canberran who wants to get vaccinated."

More than 95 per cent of Canberrans aged above 70 have had one dose while 90 per cent of those in their 30s are either booked in or have already been vaccinated.

"The strong indication from the 16 to 29 age group in terms of advanced bookings are that they too will be very keen to get vaccinated," Mr Barr said.

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