People Before Profit-Solidarity will focus on the cost-of-living and housing crises as the Dáil returns, as it builds what it calls a "people-power movement" to force the Government to act.
Speaking at a media briefing after a think-in at Buswell's Hotel, Richard Boyd Barrett TD accused the Government of failing to address the cost-of-living crisis, and of making the housing crisis worse through its policies.
"We think the time for discussion is over and we need see tens of thousands of people on the streets," he said.
The party is part of the Cost of Living Coalition which is holding a demonstration in Dublin on Saturday 24 September.
Energy costs
Mr Boyd Barrett said that "we need immediately the imposition of price controls on energy, heating and electricity, and a move towards taking all of the energy sector back into public ownership, where it's run on a not-for-profit basis."
The party proposes capping prices at the level they were at the end of last year, which it says would see a reduction of 25% on current prices.
Housing
On housing, it wants to legislation to reduce rents so that no one is spending more than 25% of their income on rent.
It is also calling for a reinstatement of the ban on evictions.
Mick Barry TD said, "We warned in the Dáil that if you end the ban on evictions there would be a skyrocketing of the number of people forced into emergency accommodation...and day after day, and month after month, with the figures being recorded, we see that happen as it goes way over the ten thousand mark."
Coalition prospects
The party says it is not worried about squeezed out by larger parties, because as support for Fianna Fáil and Fine Gael is falling, support for both Sinn Féin and People Before Profit-Solidarity is growing.
Deputy Boyd Barrett said that the party would not rule out going into a Sinn Féin-led government, but only if it was a radical government.
"What needs to change in Irish politics is that people abandon their principles for ministerial position or positions in government, that has been the road to disaster for many who pretended to be on the left in the past," he said.
On Sinn Fein's environmental policies, Bríd Smith TD said that she is "disappointed" by their "sitting on the fence, not to put too fine a pun on it, on the size of the herd (dairy and beef cow numbers)".
"I'm disappointed that they're not more vocal on the data centre proliferation in this country, and how it's soaking up the energy that we have," she added.
People Before Profit-Solidarity is calling for free and frequent public transport, the abolition of third level fees and a one tier, not-for-profit health service.
