building – Michmutters
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Australia

Bridge upgrade on Centenary Motorway at Jindalee delayed due to contract issues

The construction of a new northbound bridge at the notorious Centenary Bottleneck Motorway over the Brisbane River at Jindalee has been delayed until 2023.

The $244 million project involves duplicating the Centenary Bridge and converting the existing bridge to a three-lane southbound route, with a new three-lane bridge traveling northbound.

Transport Minister Mark Bailey said contract issues had complicated the upgrade’s timeline, with delays due to an alternate bid being submitted for the project that required “thorough due diligence” before work could proceed.

“[The delay is] unfortunate but not a huge delay, so we’re getting it built as soon as we possibly can,” Mr Bailey said.

“We’ll certainly see construction start next year.”

He said the bridge upgrade was a critical part of the Centenary Motorway upgrades throughout the west of Brisbane.

“Without the bridge [upgrade] whatever other work you do is still going to grind to a halt with limited lanes across the river,” he said.

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crash zone

The Centenary Motorway currently carries 85,000 vehicles daily, with use expected to balloon out to 152,000 vehicles daily by 2036, as the population of Ipswich, Springfield and western Brisbane booms.

Between 2010 and 2016, the motorway recorded nearly 200 crashes.

The RACQ’s monthly travel speed data reported that in May 2022, Brisbane’s slowest inbound morning traffic was just 25 kilometers per hour on the Centenary Motorway from the Ipswich Motorway to Dandenong Road, adding nearly nine minutes to the morning commute.

The bridge upgrade, jointly funded by the federal and state governments, is one of several road upgrades along the Ipswich corridor, including a recently completed $80 million upgrade to the Sumners Road interchange at Jamboree Heights.

Another $10 million in federal funding has been set aside to investigate more upgrades along the Centenary Motorway through to Ipswich.

Mr Bailey said, to date, the bridge upgrade’s budget remained at $244 million, but department planners were closely monitoring the global inflation of construction materials.

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US

Here’s how the Inflation Reduction Act’s rebates and tax credits for heat pumps and solar can lower your energy bill

It’s not the prettiest, or even most fulfilling, part of upgrading a home. But more energy-efficient heating, cooling, power and water usage can net savings that really adds up for household budgets and for doing right by the planet.

Congressional action this weekend and into next week looks to return more incentives, mostly via tax credits and rebates, to the pockets of homeowners who opt for energy-efficient choices, replacing fossil-fuel furnaces, boilers, water heaters and stoves with high-efficiency electric options that can be powered by renewable energy.

Read: Senate passes Democrats’ big healthcare, climate and tax package after marathon session

Of course, more of the nation’s electricity grid, currently run on natural gas NG00,
-2.15%,
along with lingering coal, and expanding wind and solar ICLN,
+0.76%,
will have to be powered by renewable energy for home upgrades to be truly green. But, alternatives are rising in use, and home efficiency has long been considered a good place to start.

The bill, a long-fought and greatly-downsized Democrat-crafted spending bill now known as the Inflation Reduction Act, includes rebates or a tax break for qualifying consumers who add efficient heat pumps (which, despite their name, move cold air around too ), rooftop solar, electric HVAC and electric water heaters.

The IRA was passed Sunday in the Senate and now makes its way to the House next week, where it is expected to be approved by a narrow majority for Democrats in that chamber. The Republicans who have opposed the bill have done so based on disagreements, they say, with the level of spending, but also because some support US oil and gas production on the grounds of cost savings and global security. And Democrats did agree to a future look at expediting environmental approvals for fossil fuels and clean energy.

“American families need relief from Democrat policies that attack American energy, send utility bills soaring and drive up prices RB00,

at the pump,” said Sen. Barrasso, a Republican of Wyoming who is a ranking member on the Senate Committee on Energy and Natural Resources.

Climate Nexus, an advocacy group, says a survey has shown 67% of voters support providing tax credits and other incentives to homeowners, landlords and businesses to purchase appliances that don’t use fossil fuels (such as electric water heaters, heat pumps, and electric induction cooktops).

What’s in the Inflation Reduction Act for home energy?

The legislation provides for $9 billion in total energy rebates, including the $4.28 billion High-Efficiency Electric Home Rebate Program, which returns a rebate of up to $8,000 to install heat pumps that can both heat and cool homes, and a rebate up to $1,750 for a heat-pump water heater. Homeowners might also qualify for up to $840 to offset the cost of a heat-pump clothes dryer or an electric stove, such as a high-efficiency induction range.

Read: Gas stoves targeted as US congressman alleges consumer watchdog has sat on decades of worrisome health data

and: More and more right-leaning Americans worry about climate change, but aren’t ready to give up gas stoves

Many homes will need their electrical panels upgraded before getting new appliances, and the program offers up to a $4,000 rebate toward that initial step.

“A household with an efficient electric heat pump for space heating and cooling, a heat pump water heater, one electric vehicle and solar panels would save $1,800 a year,” says Jamal Lewis and team, writing a brief on the legislation for the organization Rewiring America.

“These savings will be reflected in lower monthly energy bills, reduced bill
volatility and a lessening of disproportionately high energy burdens within disadvantaged communities,” Lewis said. “Importantly, these savings add up — so much so that if a household invests their energy bill savings from electrifying their home appliances, these savings will grow to over $30,000 after 10 years and $140,000 after 25 years (assuming an 8% annual return). ”

There are also funds in the IRA to be claimed for smaller actions: a rebate of up to $1,600 to insulate and seal a house, and a rebate of up to $2,500 for improvements to electrical wiring.

The program, to be administered at the state level, will run through Sept. 30, 2031, and homeowners would be able to collect a maximum of $14,000 in total rebates. To qualify, household income cannot exceed 150% of the area median income.

For homeowners who do not qualify for the rebates, the IRA provides for a tax credit of up to $2,000 to install heat pumps. And, installing an induction stove or new windows and doors, for example, qualifies for tax credits up to $1,200 a year.

What are heat pumps exactly?

Electric heat pumps, which replace a furnace, for instance, are energy efficient because they don’t create heat by burning fuels but rather move it (during the heating season) from cold outdoors to warm indoors. The downsides can include upfront costs and their suitability for all regions.

Still, over its lifetime, electric heat pumps generally offer the cheapest way to cleanly heat and cool single-family homes in all but the coldest parts of the US in coming decades, according to recent research from the American Council for an Energy-Efficient Economy (ACEEE). In very cold places, the analysis finds, electric heat pumps with an alternative fuel backup for frigid periods minimize costs.

“Our findings are good news for consumers and for the climate. Electric heat pumps, which heat and cool, are the cheapest clean heating option for many houses, especially now that we have cold-climate models,” says Steven Nadel, report coauthor and ACEEE’s executive director.

Cold-climate models, an advance in the technology, operate efficiently at temperatures as low as 5°F. Their energy costs, however, are minimized if an alternative fuel backup kicks in when it gets colder than 5°F for long periods.

EPA Energy Star program

EPA Energy Star program

The analysis finds that higher-income households are more likely to minimize costs with electric heat pumps, because they have newer—and more likely, single-family—homes with air-conditioning and improved energy efficiency.

The group backs congressional help for low- and moderate-income households, whose homes are often the most difficult to decarbonize. Notably, ACEEE calls for help to reduce the costs of ductless electric mini-split heat pumps in multifamily buildings.

And what about solar?

The legislation revives a 30% tax credit for installing residential solar panels and extends the program until Dec. 31, 2034.

The tax credit would decline to 26% for solar panels put into service after Dec. 31, 2032 and before Jan. 1, 2034.

What’s more, homeowners who install solar battery systems with at least three kilowatt-hours of capacity would also qualify for the tax credit.

The heating-and-cooling provisions are in addition to tax credits of up to $7,500 for the purchase of a new electric vehicle TSLA,
-6.63%

F,
-0.46%
and $4,000 for lower- and middle-income families who purchase a used EV. Early versions of this spending bill included help for e-bikes, but they are excluded in the final. Read more about those EV incentives.

Other programs

Homeowners can look beyond federal programs.

Safak Yucel, assistant professor of operations management at Georgetown University, who studies government policies relating to renewable energy and carbon emissions, said legislative uncertainty given the long slog to get this bill passed, and the risk that executive action is challenged in the courts, means that state and city incentives, and those offered by utilities, may make homeowners more assured.

“A lot of state governments, a lot of cities, they offer quite lucrative deals,” he said. “When it comes to rooftop solar, for example, Massachusetts comes to mind, which is not necessarily the sunniest of states, right, but they have quite a significant adoption of rooftop solar panels thanks to these state-level policies. I think as consumers look forward, they are more likely to see even broader involvement from state governments.”

Website EcoWatch, for instance, allows users to search by zip zode and ranks solar-friendly states.

Will incentives nudge consumer buy-in?

Broadly speaking, the new bill is meant to return more green technology manufacturing back to the US by tagging $60 billion to accelerate domestic production of solar panels, wind turbines and batteries, as well as support the critical minerals processing that are a must-have for the batteries that power EVs and help households leverage their solar power.

More domestic production could help alleviate the supply-chain issues that have hobbled markets during the COVID-19 recovery, and it could create more jobs, all of which is seen helping Americans “green up” their homes and businesses at a lower cost historically, bill proposers argue.

Biden has said the US will work to align with most major economies in the world, hitting net-zero greenhouse gas emissions by 2050, and at least halving current emissions as soon as 2030.

“Electrification will play a crucial role in decarbonizing homes, but the transition will happen slowly as long as inexpensive fossil fuels are widely available,” says Lyla Fadali, an ACEEE senior researcher.

Targeting manufacturing changes can also trickle down to consumers.

“Rather than focusing on whether or not a consumer will buy into the product at this point, what we’re seeing is that the consumers’ hand is sort of going to be pushed over a certain amount of time because so many manufacturers and producers are incentivized to build more solar, more EVs and so on,” said Shannon Christensen, an attorney and a tax and accounting specialist editor with Thomson Reuters Checkpoint, an online research platform.

“When gasoline-powered vehicles came into popularity in the beginning, nobody wanted to switch from their horse and buggy. It took quite some time to get consumers at that time to go over into that new technology. And I think we’re seeing the exact same thing,” Christensen said. “But the technology is getting good enough. And Congress has made it available to lower-income folks and through tax credits. I think that you’re going to see a [demand] shift, and I think it will rise quickly.”

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Categories
Australia

Historic Kosciuszko hut rebuilt, ready to use after Black Summer bushfires

For more than two-and-a-half years the charred remnants of Sawyers Hill hut have served as a reminder of the harsh 2019-2020 bushfires that swept through the NSW Snowy Mountains.

Built as a travellers’ rest house in the 1900s, it was one of the most renowned historic structures in Kosciuszko National Park.

It is back in business and is the first of the 11 historic huts that burnt down during the Black Summer bushfires to be rebuilt.

NSW National Parks and Wildlife Service ranger Megan Bowden said it was the only hut in Kosciuszko that was built as a travellers’ rest hut.

She said it was significant because of its association with important historic transport routes through the mountains.

“From people who used it in the early days right through to people who used to use it until it was burned,” Ms Bowden said.

“They’re quite significant as being living museums, as markers of the past and for present use.”

She said it “really hurt” to see them destroyed by fire.

“Especially Sawyer’s Hut, which was actually burned down in 2003 and we rebuilt it,” she said.

“So, to see it go again was certainly pretty hard.”

A park ranger inspects the ruins of an old hut, where now just a brick chimney stands.
Sawyers Hill hut was destroyed by fire in 2020.(ABC News: Matt Roberts)

Rebuilt by NSW National Parks and Wildlife Service staff and volunteers, the timber was sourced from burnt trees that were felled during a roadside fire risk reduction program.

“We’ve used local millers to cut them to specific dimensions and shapes like splayed boards, which are actually hard to get now,” Ms Bowden said.

“So it’s nice to be able to use the timber that was burnt in the 2020 fires and then to see it being used in the huts today.”

It was estimated that hundreds of thousands of hectares of Kosciuszko National Park burned during the 2019-2020 bushfires.

Ms Bowden said the new huts had been built with “fire resistant strategies” to help protect them during future fires.

“We’ve used things like fire retardant in the timber,” she said.

“And we’ve wrapped the windowsills with iron and actually installed sprinklers as well.”

The huts — constructed by cattlemen, prospectors, and Snowy Mountains Scheme workers in the 1800s and 1900s — help paint a picture of survival in the region during that time.

Kosciuszko Huts Association president Simon Buckpitt said their origins were many and varied.

“Some were [for] stockmen, some were for soil conservation work, some were for hydrology, and some of them were for early survey works,” Mr Buckpitt said.

A hut in the snow with skiiers outside.
The huts have long been used by cross-country skiers and for shelter.(Supplied: Klaus Huenke)

In more recent times, the huts have been used by those seeking refuge from the harsh cold climate.

Two men sought shelter in Seaman’s Hut after becoming disoriented during a hike on Mount Kosciuszko in June.

“When people do get stuck in bad weather these huts have provided really important emergency shelter,” Ms Bowden said.

A landscape of burnt bushland.
Much of Kosciuszko National Park was badly burned during the 2019-2020 bushfires.(ABC South East NSW: Keira Proust)

Timber skills kept alive

Vickery’s Hut in Tumut is next in line for a rebuild and will require traditional timber practices in construction.

Ms Bowden said the project would run training courses throughout the rebuild process to help keep the historic timber skills alive, using broad axes and other traditional methods.

“A lot of these timbers you need the skills to know how to prepare them and install them in these places,” she said.

“We’re actually trying to run some training courses as well through this program.”

Two NSW National Parks and Wildlife Service staff rebuilding a historic hut
NSW National Parks and Wildlife Service staff and volunteers are working on the rebuild project.(ABC South East: Keira Proust)

The entire rebuild project is expected to be finished by 2025, pending weather conditions.

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Categories
Australia

What is a void and how did it bring Brisbane’s CBD to a standstill?

Towering cranes and scaffolding dominate inner-city Brisbane right now with major infrastructure projects like the Cross River Rail, Brisbane Metro and Queen’s Wharf set to change the face of the CBD.

The developments are also occurring in some of the oldest parts of the city.

Then on Wednesday morning, traffic gridlock and hours-long delays gripped the CBD after contractors working on the city’s new bus network, Brisbane Metro, discovered a “void” below Adelaide Street.

Brisbane City Councillor Ryan Murphy said a decision was made “out of an abundance of caution” to close the stretch between George Street and North Quay, to ensure no vehicles drove over the weak point.

Could this happen again as the city develops?

This is what those in the know say about what could have caused the “void” and the likelihood of it happening again.

What is a void and how common are they?

Put simply, it’s a hole.

Professor David Williams, director of the Geotechnical Engineering Center at the University of Queensland, said in this instance a void “is a loss of support below the ground surface leading to surface settlement”.

“Most people would agree it’s not that common, we don’t usually have the whole of Brisbane brought to a standstill because … a void is revealed,” Professor Williams said.

“It’s more likely a bit of a one-off — it makes sense that it’s related to the construction activity.”

A man with short gray hair and beard smiling outdoors
Professor David Williams says voids are uncommon. (Supplied: Professor David Williams )

A void is also referred to as “ground subsidence”.

It can cause major disruption to roads, resulting in fracture, unevenness, and in some cases, sinkholes.

What happened under Adelaide Street?

The exact cause of yesterday’s void is yet to be determined, but Mr Murphy said it was “uncovered through excavation works”.

“We don’t know how long it was there, we don’t know exactly the cause.

“Workers were doing vacuum excavation … which found a void below one of the traffic lanes on Adelaide Street,” he told ABC Radio Brisbane.

“Some free-flowing material … flowed onto our work site which caused a slight sag in the road.

“Essentially a void [was] created, and that void needed to be filled before we could safely reopen that road – this is not a tunnel collapse.”

Professor Williams said “it’s a little unclear” whether the “excavation activity revealed or caused the void.”

A bus on Adelaide Street in Brisbane
Adelaide Street is subject to heavy traffic and was partially closed as a precaution.(ABC News: Lucas Hill)

What could have caused a void?

Tom Brown from the Rail Tram and Bus Union questioned Brisbane City Council’s explanation.

“The story doesn’t seem to stack up to me, because if there was a void underneath Adelaide Street surely the city’s engineers would’ve picked it up with the ultrasounds when they were marking up this job,” Mr Brown said.

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