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Friday, 6 May 2022

These houses by conceptos plásticos are built with blocks made from waste plastic- A report from Designboom

Everyday, bogotá, colombia, sees 740 tons of plastic waste that could take around 300 years to degrade and we’re quite sure the situation is the same in different parts of the world. thankfully, a start up in colombia is trying to mitigate the negative environmental impact of waste plastic by transforming it into an alternative construction material. created by fernando llanos and architect oscar mendez, conceptos plásticos — plastic concepts — is based on the transformation of plastic residues and rubber in pieces like blocks, which are used for housing construction.

‘the objective of plastic concepts is to answer to different problematic that affect the community nowadays, contributing at the same time with the reduction of the pollution that plastic residues have on the environment and his incident on the global warming,’ said ricardo rico, business manager, conceptos plásticos.

Conceptos plásticos empowers communities of recyclers around the world, starting in colombia all the way to africa. to create the LEGO-like building blocks, they use plastics that not everyone recycles and others that are difficult to dispose of. each type of plastic gives the bricks a different property, so they are mixed in different ways to obtain the desired product. the resulting bricks are easy to assemble, durable and inexpensive. they are also stronger than traditional construction materials; are thermo-acoustic, meaning they can be used in both hot and cold weather; they are also anti-seismic; and do not spread flames.

at first, it happens to us everywhere that people say: a plastic house! and think of a bag, people associate plastic with a bag. so they think that by bringing a lighter closer, it will ignite and that by putting a finger through it it will break. when they see the product and how solid it is, they realize and begin to weigh in a different way, then breaking that initial barrier for the user is very easy,’ oscar méndez comments.

In 2019, conceptos plásticos partnerted with UNICEF to develop a factory to convert plastic waste in côte d’ivoire into modular, easy-to-assemble, low-cost plastic bricks for classrooms. ‘this project is more than just a waste management and education infrastructure project; it is a functioning metaphor—the growing challenge of plastic waste turned into literal building blocks for a future generation of children,’ concluded UNICEF representative aboubacar kampo.

Interested in how plastic is being used around the world as a building material? see another project in kenya on designboom here: 

https://www.designboom.com/technology/gjenge-makers-recycled-plastic-bricks-kenya-02-08-2021/.

What a great way to deal with the plastic problem and the housing shortage too!  I like the way it involves the local community too.  I see more and more of these projects popping up all over the world and it gives me a lot of joy to see it.

The blog song for today is: "All right now" by Free

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Monday, 2 May 2022

What is – and is not – in the energy strategy and what does it mean for bills? a report from the London Evening Standard

 UK energy strategy

What is – and is not – in the energy strategy and what does it mean for bills?

The energy strategy has a focus on new nuclear, boosting offshore wind and doubling hydrogen production capacity.
Hinkley Point construction (Ben Birchall/PA)
Hinkley Point construction (Ben Birchall/PA) / PA Archive
By
Emily Beament
The Government’s much delayed energy strategy focuses on securing UK energy supplies in the coming years, but has faced immediate criticism that it does nothing to help families with soaring bills now.

Here is what is, and is not, in the new strategy.

– Nuclear

There is a big focus on new nuclear, including smaller “modular” reactors, to replace Britain’s ageing fleet, with the Government hoping to get 25% of power supplies from the zero carbon technology by 2050.

That includes an aim to take the decision to go ahead with one project within the next two years and for another two projects in the five years after that, potentially progressing work on up to eight new reactors across those projects by 2030.

The nuclear industry has strongly welcomed the plans, which it says will create tens of thousands of new jobs and help to achieve energy security, but even industry groups acknowledged that new nuclear power stations will take well over a decade to build.

The Nuclear Industry Association said steps are now needed to speed up investment, such as removing barriers to getting projects started, money from a promised fund allocated “at pace” and sites made available for development.

But nuclear power remains relatively expensive, and the Liberal Democrats warned construction of the full eight reactors could add £96 a year to household energy bills.

– Offshore wind

As part of a drive to generate 95% of UK power from low carbon sources by 2030, with fossil fuels shrinking from around 40% today to 5%, the Government has set a new ambition for 50 gigawatts (GW) of offshore wind – up from a previous goal of 40GW.

The cost of offshore wind has fallen dramatically in the past few years, and the energy contracts windfarm operators have to deliver power are now significantly cheaper than the current wholesale electricity price which is driven by the high gas prices.

A sailing boat passes the Kentish Flats Offshore Wind Farm (Gareth Fuller/PA)
A sailing boat passes the Kentish Flats Offshore Wind Farm (Gareth Fuller/PA) / PA Archive

This means energy prices are lower than they would be without renewables on the system – a trend expected to continue as more, and cheaper, offshore wind is added to the grid.

– Onshore wind

Despite being one of the cheapest forms of electricity, along with solar, and widely popular with the public, onshore wind has effectively been banned by Tory governments in England for nearly a decade through planning restrictions.

The Government is not planning a wholesale change in the planning regulations for onshore wind.

It said it will “consult on developing local partnerships for a limited number of supportive communities in England who wish to host new onshore wind infrastructure in return for guaranteed lower energy bills”.

“The consultation will consider how clear support can be demonstrated by local communities, local authorities and MPs,” it said.

But Boris Johnson has said new sites “will have a very high bar to clear” and would have to reward local residents with cheaper energy.

– Hydrogen

The strategy doubles the target for hydrogen production by 2030, to 10 gigawatts, with the intention of making at least half of that using electricity, which could come from clean renewables.

Hydrogen is seen as a potentially clean way of shifting from the use of fossil fuels, as it could be an alternative fuel for power plants, industrial processes, heavy goods vehicles and even instead of heating with gas boilers.

But energy expert Jan Rosenow said: “Using hydrogen for home heating is much less efficient than heat pumps and district heating. All recent independent research agrees that hydrogen for home heating is costly.”

And he warned: “If the hydrogen is made from fossil gas it would mean that the UK would increase its dependence on fossil gas. This is because blue hydrogen from fossil can only be produced with a significant efficiency penalty.”

A view of Romney Marsh Solar Farm in Kent (Gareth Fuller/PA)
A view of Romney Marsh Solar Farm in Kent (Gareth Fuller/PA) / PA Archive

– Solar

The costs of solar power have also plummeted in the past decade, and the strategy expects to see a five-fold increase in deployment by 2035.

There will be a consultation on amending planning rules to strengthen policy in favour of development on non-protected land, while making sure communities still have a say, and moves to simplify planning permission for rooftop solar.

– Oil and gas

Promoting the new energy strategy, the Prime Minister said the Government was taking a “sensible and pragmatic view” on new North Sea oil and gas and said it was important to license domestic resources rather than importing higher carbon fossil fuels from Russia and other places.

But the International Energy Agency has said there should be no new oil and gas exploration after 2021 to meet targets to avoid the most dangerous warming, and UN scientists have called for the end of the fossil fuel age.

Onshore, while the Government has launched a review into the science of fracking, Business Secretary Kwasi Kwarteng has said shale gas would not deliver at a commercial scale for years, and would do nothing for bills now.

(PA Graphics)
(PA Graphics) / PA Graphics

The Government’s independent Climate Change Committee has said the best way of reducing consumers’ exposure to volatile prices is to cut demand for fossil fuels, through developing more wind and solar power, electric vehicles, heat pumps and energy efficiency such as insulation in homes.

Yes, what about energy efficiency?

While the strategy highlights existing energy efficiency measures, there is nothing new on helping cut demand for gas and boost insulation – which is seen as the quickest way of reducing exposure to Russian gas and cut energy bills.

Analysis by climate think tank E3G finds that energy efficiency and clean heat such as heat pumps in homes could be implemented within this year, would reduce bills, and would cut gas use by the equivalent of 149% of current Russian imports by 2025.

A focus on insulation is also backed by the public, with a poll for the Energy and Climate Intelligence Unit finding that 84% thought it was important the Government should take steps to insulate homes to cut Russian gas.

Insulation being installed in a loft (Philip Toscano/PA)
Insulation being installed in a loft (Philip Toscano/PA) / PA Wire

– So what does it mean for bills?

By the Government’s own admission, the energy strategy will do little to reduce bills in the immediate term, though ministers say other policies will help.

This is a long-term strategy, with technologies such as nuclear, the scaling up of offshore wind, and tapping into further domestic oil and gas resources set to take years or even decades to deliver.

With households hit by an energy price hike of more than 50% in April and further rises looming in October, pressure is likely to mount on the Government to take more action to help make homes cosier and curb energy demand and bills.  Unfortunately the government is twisting and turning to wriggle out of the COP26 agreement (what a surprise) and are using any and every excuse to keep lining the pockets of fossil fuel companies with tax reductions (or no tax bills at all) paid for by the ordinary people.

Luckily summer is almost here and the electricity bills should go down, unless you have air conditioning and they will probably stay high!  We're a "leave the windows open" family when it comes to summer time! I'm not a big fan of re-circulated air and most people don't know that the filters need to be cleaned regularly to keep those nasty bugs out!

The blog song for today is: "Waterfall" by the Stone Roses.

 TTFN