Up to 80% of the cost of some home energy upgrades will be covered by the State under a new scheme approved by Cabinet.
Ministers have signed off on plans, which include grants in the region of €25,000 towards a deep retrofit.
While smaller upgrades - like attic insulation, cavity wall insulation and replacing windows and doors - will have improved grants.
The Government wants to see 500,000 home energy upgrades, to a B2 Building Energy Rating (BER), by 2030 as part of the €8bn scheme.
Tom Parlon, director-general of the Construction Industry Federation (CIF), told The Hard Shoulder the industry will grow if the demand is there.
"I believe that the industry won't be found wanting, if that demand is there and if the certainty is there - that this thing is going to happen - the industry will grow and meet those demands".
But he says people will have to be invested in this as well.
"It's a big decision to take for those householders.
"And - notwithstanding the very generous grant aid that is there - individuals are going to have to stump up quite a bit of cash, they're going to have quite a bit of intrusion, major intrusion.
"Their homes are going to be taken over.
"And if you're doing a deep retrofit, people will need to move out of their homes for a number of weeks".
He also believes there will be a "major stride" in plans to build new homes.
"The figures on the housing, if we're to meet that ambition - and I think this year we will make a major stride in terms of the extra units we will do.
"But we need to employ an extra 1,000 construction workers each month for the next number of years to meet that ambition".
So how will it all work?
A new National Home Energy Upgrade Scheme will provide increased grant levels of up to 50% of the cost of a typical deep retrofit to a B2 BER standard - up from 30%-35% grants currently.
It will be a 'one stop shop' to offer start-to-finish project management service - including access to financing - for home energy upgrades.
There will also be a "significant increase" in the number of free energy upgrades for those at risk of energy poverty.
This will move to 400 per month from an average of 177 per month in 2021.
And there will be a special enhanced grant rate - equivalent to 80% of the typical cost for attic and cavity wall insulation - for all households.
The schemes will be administered by the Sustainable Energy Authority of Ireland (SEAI).
While increased grant supports and free energy upgrades for those at risk of energy poverty is supported by ring-fenced funds from the Carbon Tax.
A total of €267m, of which €202m is Carbon Tax receipts, has been allocated for SEAI residential and community schemes in 2022.
This investment will support almost 27,000 home energy upgrades, including over 8,600 homes to a BER of B2, and 4,800 free energy upgrades for households at risk of energy poverty.
Increased grant rates and supports
Grant supports for homeowners that want to take a step-by-step approach to upgrading their homes have also been increased.
For instance, the grant for heat pumps has increased from €3,500 to €6,500 and the rate for external wall insulation has increased from €6,000 to €8,000 for a detached house.
Free home energy upgrade
The Warmer Homes Scheme offers free energy upgrades for eligible homeowners who are most at risk of energy poverty.
A budget allocation of €109m has been provided for this scheme this year.
The Government says this will support an increase in the number of free home upgrades, from an average of 177 per month in 2021 to 400 per month this year, helping to reduce waiting times.
The scheme will also target the worst performing properties, by prioritising homes that were built and occupied before 1993 and have a "pre-works BER of E, F or G".
But it says existing applications will not be affected by this change.
Grants for attic and cavity wall insulation
Grants for cavity wall and attic insulation will more than triple.
In the case of a semi-detached home, the attic insulation grant will increase from €400 to €1,300 and the cavity wall insulation grant will increase from €400 to €1,200.
The Government says these can be deployed "rapidly and at scale this year."
The new grant rates will cover approximately 80% of the typical cost of these measures, and will be available to all homeowners.
Improving buildings across the country
Under the Community Energy Grant Scheme, grants are available for public, commercial and community buildings.
These include buildings within housing associations and local authorities, rental properties, and buildings belonging to public sector organisations.
The budget for this scheme will be €43m in 2022 - of which approximately €15m will relate to home retrofits.
Grants of up to 80% are available under this scheme for private, energy-poor homeowners.