Showing posts with label energy. Show all posts
Showing posts with label energy. Show all posts

Thursday, 22 October 2020

Boiling Point: Climate change is wreaking havoc on the power grid in ways you never knew (excerpts): LA Times

 Pics from this blog

"There’s been a lot of debate about the extent to which climate change is actually to blame. Officials pointed out that four of California’s five hottest August days in the last 35 years came this past August; others have noted that the state experienced hotter days and higher overall peak electricity demand during a July 2006 heat storm that did not lead to rolling blackouts.

Here’s what’s not in dispute: As the planet gets hotter, largely because of the burning of fossil fuels, the number of blackouts caused by extreme weather is on the rise, in California and across the country.

The nonprofit research organization Climate Central analyzed federal data and released a report last month finding that hurricanes, wildfires, heat storms and other extreme weather events caused 67% more power outages in the United States during the decade ending in 2019 than they did during the previous decade"

........

"Climate change isn’t the only reason blackouts are on the rise. Roshi Nateghi, an industrial engineering professor at Purdue University, told me rapid urbanization — more people moving to cities — has put greater strains on aging infrastructure. And the data used by Climate Central may overstate the increase in weather-driven outages, since reporting requirements for utilities have gotten more stringent over time.

But there’s no question climate change is playing a role, and the effects will only get worse, Nateghi said.

“A big part of it is that our grid is vulnerable to severe weather and climate events,” she said. “And we have been seeing an increase in intensity and frequency of extreme events.”

 

Why is extreme weather such a problem for the electric grid? Powerful winds can knock down utility poles. Intense rains can flood substations. Ice can accumulate on wires during winter storms. Wildfires can knock out power lines — or utility companies can be forced to shut down lines to avoid igniting fires. High temperatures can cause fossil-fueled power plants to produce less electricity, which actually happened with California’s natural gas fleet in August."

Go to LA Times story 


Related:  I’m an American Climate Emigrant (excerpts): Sierra

Friday, 9 October 2020

A nine-point plan for the UK to achieve net zero carbon emissions (excerpts): Guardian

"Author Chris Goodall says tackling the climate crisis is neither difficult nor expensive and can help boost the economy

9point
Illustration: Guardian Design

Net zero. It’s a simple enough concept – the notion that we reduce carbon emissions to a level where we are no longer adding to the stock in the atmosphere. More and more companies and countries are taking the pledge, promising to hit net zero by 2050, 2030 or even sooner.

But it is easier said than done. Industrial processes remain carbon intensive, as do agriculture and aviation. Even the sudden economic halt brought about by the Covid-19 pandemic this year will result in a mere downward blip in global greenhouse gas emissions.

The sharp decline in energy use at the beginning of the pandemic has not persisted. Government stimulus programmes have done little to prioritise green projects – barely 1% of the funds made available around the world will target climate crisis mitigation. Hopes that the virus would push us into radical action to reduce emissions have proved illusory.

This may make us pessimistic about the future – but that would be a

mistake. The last six months have seen a growing realisation around the world that fully decarbonising our societies is technically possible, relatively cheap and potentially of major benefit to society, and particularly to less prosperous sectors.

A sensible portfolio of actions could reduce emissions, provide jobs and improve living standards in forgotten parts of the UK. It won’t be completely painless, but this nine-step plan can transform much of the British economy." ...

...................................

...."9. Carbon tax

Lastly, we should try to bring the reluctant oil and gas industries onside by instituting a tax on the production of anything that results in carbon emissions. Rarely in the past have businesses asked to be more heavily taxed. But today almost all large fossil fuel companies are pleading for a carbon levy that provides the necessary incentive for them to wean themselves off extracting oil and gas.

Fighting the causes and consequences of the climate emergency is neither particularly difficult or expensive. The net impact on jobs and living standards will be strongly positive. The programme will require direction from central government, and probably an effective carbon tax, alongside a willingness to hand over some powers to local authorities.

Perhaps this is the most contentious part of the programme I propose: the idea that Whitehall should recognise both that the free market needs some assistance when it comes to the climate crisis, and that devolution of real power to towns and cities could be beneficial to everybody."

Chris Goodall is an author and environmentalist whose latest book, What We Need To Do Now, assesses the steps needed to build a low-carbon world and was shortlisted for the Wainwright Prize. He writes a weekly newsletter on low carbon progress around the world, available at www.carboncommentary.com.

Go to complete Guardian article 

Related: Exxon Touts Carbon Capture as a Climate Fix, but Uses It to Maximize Profit and Keep Oil Flowing (excerpts): Inside Climate News

Friday, 18 September 2020

Scottish green hydrogen scheme gears up to fuel ferries, buses and trains (excerpt): The Guardian

"Scottish Power’s wind and solar farms will soon help produce green hydrogen to run buses, ferries and even trains as part of a pioneering strategic partnership to develop the UK’s nascent hydrogen economy.

Wind and solar farms will produce the gas alongside Scottish Power,

The renewable energy company, owned by Spain’s Iberdrola, will work alongside companies that specialise in producing and distributing the zero-carbon gas. Hydrogen is expected to play a major role in helping the UK to meet its climate targets.

Scottish Power will use the clean electricity generated by a major new solar farm planned for a site near Glasgow to run an electrolyser, owned by its project partner ITM Power, which will split water into hydrogen and oxygen molecules."..............

Go to complete The Guardian article

Related: HYDROGEN The once and future fuel? Opinion

  hydrogen,clean energy,energy,#renewables,

Thursday, 10 September 2020

Aussie invention could save old coal stations by running them on zero-emissions ‘Lego’ blocks (excerpt): The Conversation


(MGA), stores energy in the form of heat
Miscibility Gap Alloy (MGA)
"As climate change worsens, the future of fossil fuel jobs and infrastructure is uncertain. But a new energy storage technology invented in Australia could enable coal-fired power stations to run entirely emissions-free.
The novel material, called miscibility gap alloy (MGA), stores energy in the form of heat. 


MGA is housed in small blocks of blended metals, which receive energy generated by renewables such as solar and wind.


(MGA), stores energy in the form of heat
MGA
The energy can then be used as an alternative to coal to run steam turbines at coal-fired power stations, without producing emissions. Stackable like Lego, MGA blocks can be added or removed, scaling electricity generation up or down to meet demand.

MGA blocks are a fraction of the cost of a rival energy storage technology, lithium-ion batteries. Our invention has been proven in the lab – now we are moving to the next phase of proving it in the real world."
............................................

"If our electricity grid is to become emissions-free, we need an energy storage option that’s both affordable and versatile enough to be rolled out at massive scale - providing six to eight hours of dispatchable power every night. 
 
MGAs store energy for a day to a week. This fills a “middle” time frame between batteries and hydro-power, and allows intermittent renewable energy to be dispatched when needed."




Related:  'The Future We Choose', Book by Christiana Figueres & Tom Rivett-Carnac

miscibility gap alloy (MGA), energy, coal, #methanegas, #Australia, batteries, #jailclimatecriminals, video,

Wednesday, 9 September 2020

COVID-19 can be an historic turning point in tackling the global climate crisis: UK Committee on Climate Change

(Pics from this blog)  

 If only the current Australian government would take advice like this. This is from the United Kingdom's Committee on Climate Change to the U.K. government in 2020.

1. Low-carbon retrofits and buildings that are fit for the future.
Climate Action Now
 "Ministers must seize the opportunity to turn the COVID-19 crisis into a defining moment in the fight against climate change, the Committee on Climate Change (CCC) says today.
 

In its annual report to Parliament, the Committee provides comprehensive new advice to the Government on delivering an economic recovery that accelerates the transition to a cleaner, net-zero emissions economy and strengthens the country’s resilience to the impacts of climate change.

1. Low-carbon retrofits and buildings that are fit for the future.
Cities might become unbearable.
Important steps have been taken in the last year, but much remains to be done. For the first time the Committee sets out its recommendations government department by government department. These are the urgent steps that must be taken in the months ahead to initiate a green, resilient COVID-19 recovery. 

They can be delivered through strong coordination across Whitehall. Doing so will propel the UK towards more rapid climate progress and position the country as an international climate leader ahead of the pivotal COP26 climate summit in Glasgow next year.

CCC Chairman, Lord Deben, said: “The UK is facing its biggest economic shock for a generation. Meanwhile, the global crisis of climate change is accelerating. We have a once-in-a-lifetime opportunity to address these urgent challenges together; it’s there for the taking. The steps that the UK takes to rebuild from the COVID-19 pandemic can accelerate the transition to a successful and low-carbon economy and improve our climate resilience. 

Choices that lock in emissions or climate risks are unacceptable.”


1. Low-carbon retrofits and buildings that are fit for the future.
Climate Change is a fact
Chair of the CCC’s Adaptation Committee, Baroness Brown of Cambridge, said: “COVID-19 has shown that planning for systemic risks is unavoidable. We have warned repeatedly that the UK is poorly prepared for the very serious impacts of climate change, including flooding, overheating and water shortages. Now is the moment to get our house in order, coordinate national planning, and prepare for the inevitable changes ahead. The UK’s domestic ambition can be the basis for strong international climate leadership, but the delivery of effective new policies must accelerate dramatically if we’re to seize this chance.”

The Committee’s new analysis expands on its May 2020 advice to the Prime Minister in which it set out the principles for building a resilient recovery. In its new report, the Committee has assessed a wide set of measures and gathered the latest evidence on the role of climate policies in the economic recovery. Its report highlights five clear investment priorities in the months ahead:

1. Low-carbon retrofits and buildings that are fit for the future.

1. Low-carbon retrofits and buildings that are fit for the future.
Hydrogen energy still requires research and development
There are vital new employment and reskilling opportunities across the country if Governments support a national plan to renovate buildings and construct new housing to the highest standards of energy and water efficiency, to begin the shift to low-carbon heating systems, and to protect against overheating. Roll-out of ‘green passports’ for buildings and local area energy plans can begin immediately. 

2. Tree planting, peatland restoration, and green infrastructure. Investing in nature, including in our towns and cities, offers another quick route to opportunities for highly-skilled employment, and outcomes that improve people’s lives. By making substantial changes in our use of land, which are needed to meet the UK’s Net Zero target, we will bring significant benefits for the climate, biodiversity, air quality, and flood prevention.

1. Low-carbon retrofits and buildings that are fit for the future.
Land ice is melting
3. Energy networks must be strengthened for the net-zero energy transformation in order to support electrification of transport and heating. Government has the regulatory tools to bring forward private sector investment. New hydrogen and carbon capture and storage (CCS) infrastructure will provide a route to establishing new low-carbon British industries. Fast-tracked electric vehicle charging points will hasten the move towards a full phase out of petrol and diesel cars and vans by 2032 or earlier.

4. Infrastructure to make it easy for people to walk, cycle, and work remotely. Dedicated safe spaces for walking and cycling, more bike parking and support for shared bikes and e-scooters can help the nation get back to work in a more sustainable way. For home working to be truly a widespread option, resilient digital technology (5G and fibre broadband) will be needed.

5. Moving towards a circular economy. Within the next five years, we can not only increase reuse & recycling rates rapidly but stop sending biodegradable wastes to landfill. Local authorities need support to invest strategically in separated waste collections and recycling infrastructure and to create new regional jobs.

There are also opportunities to support the transition and the recovery by investing in the UK’s workforce, and in lower-carbon behaviours and innovation:


1. Reskilling and retraining programmes. The net-zero economy will require a net-zero workforce, able to install smart low-carbon heating systems and to make homes comfortable; to design, manufacture and use low-carbon products and materials; and to put carbon back, rather than taking carbon out, from under the North Sea. Now is the time to build that workforce and to equip UK workers with vital skills for the future.

1. Low-carbon retrofits and buildings that are fit for the future.
Our children want answers.
2. Leading a move towards positive behaviours. There is a window for Government to reinforce the ‘climate-positive’ behaviours that have emerged during the lockdown, including increased remote working, cycling and walking. The public sector must lead by example by encouraging remote working. It also needs to innovate in order that customer service can be provided effectively remotely.

3. Targeted science and innovation funding. Kick-starting research and innovation now in low-carbon and adaptation technologies will facilitate the changes needed in the decades ahead and build UK competitive advantage. The COVID-19 crisis has highlighted the importance of research if we are to understand fully the threats and learn how to manage them.

1. Low-carbon retrofits and buildings that are fit for the future.
Cities must retreat from the coast.
Achieving the UK’s climate goals and rebuilding the economy fit naturally together. Each makes the other possible. Success demands that we do both. The actions recommended by the CCC will deliver an improved economy, better public health, improved biodiversity and access to nature, cleaner air, more comfortable homes and highly productive and rewarding employment."

Related:   Climate change: How the UK contributes to global deforestation (excerpt): BBC




#economy, #heatwaves, Britain, cities, COVID-19, energy, England, floods, infrastructure damage, reskilling, science, tidal flooding, United Kingdom

Monday, 17 August 2020

California begins rolling blackouts as state faces worst heat in 70 years (excerpt): SMH

America's west coast is set to have its hottest two weeks in 70 years
Extreme heat has caused Californian fires and blackouts
"As many as 2 million Californians were plunged into darkness over a four-hour span late Friday in the state's first rolling blackouts since the 2001 energy crisis - and that was just day one.

America's west coast is set to have its hottest two weeks in 70 years, putting even more strain on power grids after California imposed its first rolling blackouts since 2001.

Excessive heat warnings and watches stretch from the Pacific Coast inland to Montana, Utah and Arizona, according to the National Weather Service. Sacramento is forecast to be 109 degrees Fahrenheit (43 Celsius) by Tuesday. Pasadena could hit 108."

"The sudden and largely unannounced outages in California are a stark reminder of the fragility of power grids in the face of extreme weather. Searing heat has gripped cities around the globe in recent weeks, including Brussels, Paris and New York."



#extremeheat, #cambio-climatico, #气候变化, #California, energy, #jailclimatecriminals,