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carbon

Zero carbon by 2050?

June 13, 2019/0 Comments/in Home Page news feed, News /by joannevickers

The UK is to become the first G7 nation to set a legally-binding target to achieve net zero carbon emissions by 2050.

Prime Minister Theresa May announced Government will tomorrow lay a statutory instrument before Parliament that will amend the Climate Change Act and introduce a  net zero emission target.

Presently the country is committed to cut greenhouse gas emissions by 80% by 2050.

According to the Committee on Climate Change, which recommended the move in its recent report, the industry has little more than 10 years to take all new buildings over to net zero carbon if the goal is to be met.

The commitment will also need wholesale changes to energy generating infrastructure and big changes to new buildings and improvements to existing buildings.

This will require a switch away from fossil-fuel based heating, increasing the energy efficiency of the building stock, and improving the energy efficiency of lighting and electrical appliances.

It will also necessitate the widespread use of heat pumps to replace boilers and accelerating district heating and hydrogen technologies.

Julie Hirigoyen, Chief Executive at UKGBC said: “This is a powerful and positive move by the Prime Minister that will give her time in office a legacy beyond Brexit.

“UKGBC knows that the built environment contains some of the biggest opportunities to slash emissions.

“We must accelerate action in all areas including improving the efficiency of our aging building stock, and overcoming the challenge of decarbonising heat.

“To do this, we need to see both policy and industry leadership to ensure the built environment is at the vanguard of emissions reductions. There is no time to lose, now is the time to act.”

Paul Reeve, director of the Electrical Contractors Association, said: “No-one should expect the feat of resolving the UK’s carbon footprint to be anything other than daunting, but the Government has issued a truly remarkable response to the ‘zero carbon’ challenge set out by the CCC in May.

“The task ahead is immense: the UK is drastically short of the infrastructure, supply and installation capacity needed to introduce low-carbon building heating at scale.

“There are also major ‘low carbon’ skills gaps across building design, construction and installation. We also need to ensure that whatever happens in the years ahead delivers the quality and performance necessary for whole-life low carbon buildings.”

https://broadsword-group.co.uk/wp-content/uploads/2017/06/BS_Blog_header_1030x433-carbon.jpg 433 1030 joannevickers https://broadswordgrp.wpengine.com/wp-content/uploads/2019/11/broadsword-logo.png joannevickers2019-06-13 12:54:512019-06-24 12:56:45Zero carbon by 2050?
straw bales

The 7 best eco friendly materials for building

August 15, 2018/0 Comments/in News /by joannevickers

With the inevitability of declining fossil fuels, and the threat of global climate change, reducing our energy consumption is an essential survival strategy.

Choosing to build green saves energy. The low embodied energy of green products ensures that very little energy went into their manufacture and production, with a direct reduction in carbon emissions. Eco friendly design methodology can further reduce energy consumption by minimising energy inputs for heating, cooling and light, and incorporating energy efficient appliances. Saving energy for the occupant also saves money – an issue that will become increasingly important as the cost of fossil fuels inevitably rises in the near future.

The most eco friendly construction materials for a home are as follows:

Recycled Steel

Utilises steel already in existence for structural use in a home. The reclaimed steel from 6 junk cars provides enough recycled steel to build a 2000 square for home. Recycling saves 75% of the energy costs. Steel is the most recycled material in the world and recycled steel is used in the manufacture of all new steel.

Bamboo

Bamboo is increasing in popularity as a building material. Bamboo is very sustainable since it grows quickly. While trees such as pine and cedar can be reforested, growing them can take years. Bamboo can be reforested much more promptly and grows throughout the world.  Bamboo, like true wood, is a natural composite material with a high strength-to-weight ratio useful for structures. Bamboo has a higher compressive strength than wood, brick or concrete and a tensile strength that rivals steel.

Sheep’s Wool

Sheep’s wool, of course, can also be regrown quickly. After shearing, sheep inherently produce a new crop. Clothing manufacturers have long-known the insulating properties of wool, which make very cozy sweaters and socks. The same insulating features can make sheep’s wool an energy-efficient insulator in walls, ceilings and attics. Sheep Wool Insulation is totally natural, environmentally friendly, and quick and easy to install.  Wool insulation and other eco-friendly products appeal to the growing numbers of home owners and buyers looking for green buildings with an excellent energy rating.

Straw Bales

Straw bales also have fantastic insulating properties. Straw bales are placed in walls, attics and ceilings to contribute to cooler temperatures in the summer and warmer temperatures in the winter. Straw can be harvested and re-planted easily with minimal environmental impact. The making of straw into bales also has a very low influence.  Research has shown that straw-bale construction is a sustainable method for building, from the standpoint of both materials and energy needed for heating and cooling.

Precast Concrete

Concrete is a natural material that can be recycled, making it an appropriate choice for eco-friendly homes. Pre-cast concrete is eco-friendlier than concrete poured on site. It is poured into pre-made molds over rebar or wire, then cured. Once the concrete has hardened, it can be shipped and placed into multiple structures. As a result, precast concrete achieves economies of scale that concrete which is poured on-site cannot.

Reclaimed or Recycled Wood

Reclaimed or recycled wood has much less of an environmental impact than harvesting new timber. Since many homes and other structures have used wood for several years, it’s relatively easy to reclaim those structures for new home building. Wood can be used in the construction of a home — reclaimed and recycled wood can also be used to make unique floors or exposed beams with an antique look.

Earth

Many cultures throughout the centuries have used earth for building. Homes built of earth are warm in the winter and cool in the summer. While earth homes are frequently produced in China and parts of South America, they are far less prevalent in the United Kingdom.

Plant-Based Polyurethane Rigid Foam

Rigid foam is often used as insulation material in building. It’s made from kelp, hemp and bamboo. Because it is rigid — and relatively immovable — it can be used in insulation. It offers protection against mold and pests, as well as sound insulation and heat resistance.

There are many good reasons why we should use eco-friendly construction methods and materials. It can improve the health of our planet, and the health of our own lives. It also supports local business and helps strengthen the local economy, which in turn helps to build our communities into vibrant, prosperous and desirable places to live

Source: motherearthnews.com / Tata Steel Europe / Sheep Wool Insulation / Wikipedia /

https://broadsword-group.co.uk/wp-content/uploads/2018/09/Webp.net-resizeimage-6.jpg 343 1030 joannevickers https://broadswordgrp.wpengine.com/wp-content/uploads/2019/11/broadsword-logo.png joannevickers2018-08-15 13:34:122018-09-25 12:55:53The 7 best eco friendly materials for building
Graphene

Wonder material Graphene could revolutionise the construction industry

April 25, 2018/0 Comments/in Home Page news feed, News /by joannevickers

Scientists say a greener, stronger and more durable concrete made using “wonder-material” graphene could revolutionise the construction industry.  

Graphene is a form of carbon first reliably produced at the University of Manchester by researchers in 2004, work which led to two Nobel prizes. It is made up of a single layer of carbon atoms in a hexagonal lattice. Its structure gives it important physical qualities, including efficient conductance of heat and electricity and unusual strength.

A research team at the University of Exeter, which includes Cast Consultancy’s Dimitar Dimov, has developed a technique which uses nanoengineering technology to incorporate graphene into traditional concrete production.

The researchers say the new composite material is more than twice as strong and four times more water resistant than existing concretes, and has been tested using British and European industry standards.

The graphene-reinforced concentre material also reduces the carbon footprint of conventional concrete production methods, according to the University of Exeter scientists. They add that the technique could pave the way for other nanomaterials to be incorporated into concrete.

Dimitar Dimov, lead author, who works at the University of Exeter engineering department and with construction consultancy Cast, said: “This research is important as it can be applied to large-scale manufacturing and construction. The industry has to be modernised by incorporating not only offsite manufacturing, but innovative new materials as well.

“Finding greener ways to build is a crucial step forward in reducing carbon emissions around the world and so help protect our environment as much as possible. It is the first step, but a crucial step in the right direction to make a more sustainable construction industry for the future.”

Professor Monica Craciun, co-author of the paper and also from Exeter’s engineering department, said: “This new composite material is an absolute game-changer in terms of reinforcing traditional concrete to meets these needs. Not only is it stronger and more durable, but it is also more resistant to water, making it uniquely suitable for construction in areas which require maintenance work and are difficult to be accessed.

“Yet perhaps more importantly, by including graphene we can reduce the amount of materials required to make concrete by around 50% – leading to a significant reduction of 446kg per tonne of the carbon emissions.”

The paper, Ultrahigh Performance nanoengineered Graphene-Concrete Composites for Multifunctional Applications, is published in the journal Advanced Functional Materials.

The research was supported by the UK’s Engineering and Physical Sciences Research Council.

Cement-making accounts for 6% of global carbon emissions, and manufacturers must make sharp reductions if the Paris climate goals are to be met, according to the Carbon Disclosure Project, in a recent study.

 

Source: Construction Manager / The Guardian

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renewable

UK sets renewable energy records

January 16, 2018/0 Comments/in Home Page news feed, News /by joannevickers

The UK broke 13 renewable energy records in 2017, including some especially notable ones.

The year 2017 has been the greenest ever in how the UK generates its electricity.

Renewable sources of energy produced more than three times the amount of electricity that came from coal.

More electricity was generated by wind than coal on more than three quarters of days in the year, and more by solar energy on more than half the days.

In March, the largest amount of renewable electricity was produced – 19.2GW.

In April, the UK had its first 24-hour period for more than 150 years without using power from coal.

In June, wind, nuclear and solar were generating more than gas and coal combined for the first time.

In December, the country generated the most wind power in a day – 281.5GW.

The figures have been welcomed by environmental campaigners, including Gareth Redmond-King, of the environmental campaigning group WWF.

He told Sky News: “A huge part of it is government support to install new renewables, offshore wind particularly, but also onshore wind and solar that’s enabled the industry to grow – and for much more renewables on the system.

“Of course, companies have had to adjust to provide for that and build those power stations, and of course the more consumers that switch to clean energy the more demand there is for that to be built.”

The UK has seen its greenest ever summer as low carbon energy production spikes and offshore wind farm subsidies at a record low.

The figures from the National Grid reflect a UK government commitment to reduce carbon emissions and meet its targets on greenhouse gases.

It has targeted 2025 as a date to end the use of “unabated coal” – coal from which the carbon emissions are not captured.

However, while the news is good on the use of renewables versus coal, there are less encouraging figures regarding gas.

This year, output from wind was more than from gas – a fossil fuel – on only two days, and overall renewables outstripped gas on just 23 days.

Source: Sky News / UK Construction Week

https://broadsword-group.co.uk/wp-content/uploads/2018/01/Renewable-energy-1030x433.jpg 433 1030 joannevickers https://broadswordgrp.wpengine.com/wp-content/uploads/2019/11/broadsword-logo.png joannevickers2018-01-16 10:35:012018-01-16 10:35:01UK sets renewable energy records
green gas

15 million homes could be powered by green gas by 2050

November 6, 2017/0 Comments/in Home Page news feed, News /by joannevickers

Biogas produce from domestic waste could generate enough power to fuel 15mn homes by 2050, according to a new report by UK gas distribution firm Cadent.

This would be enough energy to cover households across the south east of England, London, and East Anglia, and the most effective way of managing the large amounts of waste produced in the UK.

Biogas could grow significantly in the next 30 years, allowing black domestic bag rubbish, agricultural waste, energy crops, food waste, and sewage to generate 183TWh of biomethane.

Two-thirds of renewable gas could be sourced from energy crops and agricultural residues, with the remaining third coming from waste. Of that third, 83% would be produced by Bio-Substitute Natural Gas (BioSNG) and 17% would derive from biomethane, generated by anaerobic digestion.

BioSNG production is a thermochemical process that utilises gasification and the methanation of the produced “syngas”. It can be transported through existing natural gas networks to be used in domestic, commercial and industrial heating and CHP applications.

“The findings of this report show that with the right policies in place renewable gas could play a significant role in helping the UK meet its carbon reduction targets, particularly in heat and transport, which are lagging behind electricity,” commented Cadent Director of Network Strategy, David Parkin.

“Alongside other green energy solutions, renewable gas offers us an affordable, sustainable route to heat our homes and fuel transport, while tackling climate change, and contributing towards more sustainable waste management and cleaner air.”

In November of last year Ecotricity – the UKs greenest energy company claimed that by 2035, almost all homes in Britain could be heated by the green gas from grass – creating an industry worth £7.5 billion annually for the economy.

They received planning permission to build a prototype of the first-of-a-kind green gas mill at Sparsholt College in Hampshire.

Their report also stated that the green gas production will be “virtually carbon neutral” and could play a significant role in Britain meeting its climate targets.

Ecotricity founder Dale Vince said: “As North Sea reserves run out, the big question is where we’re going to get our gas from next. The government thinks fracking is the answer, but this new report shows there is a better option.

“Recently, it’s become possible to make green gas and put it into the grid, in the same way we’ve been doing with green electricity for the last two decades. The current way of doing that is through energy crops and food waste – but both have their drawbacks.

“Our first green gas mill has just been given the go-ahead, and we hope to build it soon – though that does depend on whether government energy policy will support this simple, benign and abundant energy source. I call on Theresa May to review the government’s plan for where Britain gets its gas – post-North Sea.”

Green energy is electricity and gas made from renewable sources, green electricity from the wind, sun and sea, and green gas made from organic materials and is completely carbon neutral. In 2013 there was just one green gas plant in the UK. Now there are over 60 projects using anaerobic digestion to make biomethane useful to us.

Green gas is incredibly versatile, used as a source of electricity, a replacement to petrol, and a new way to heat homes. Using greener gas means “It’s not disruptive in terms of the roads and our urban environments,” says Chris Train OBE, chief executive of National Grid Gas Distribution Limited. “It’s also not disruptive in the home, for customers. It allows us to use existing appliances. That’s a great advantage.”

Sources – Energy digital / Utility Week / Ecotricity

https://broadsword-group.co.uk/wp-content/uploads/2017/11/BS_Blog_header_1030x433-green.jpg 433 1030 joannevickers https://broadswordgrp.wpengine.com/wp-content/uploads/2019/11/broadsword-logo.png joannevickers2017-11-06 12:12:512017-11-06 12:12:5115 million homes could be powered by green gas by 2050

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