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2015-11-17 The Real Merits of Large CHP-DH

Large CHP-DH v Heat Pumps - click for full size image
Large CHP-DH v Heat Pumps
Why Combined Heat and Power ?
Electric Heat Pumps
Large CHP-District Heating
The Importance of CHP Unit Size
Large CHP-DH is best for near-zero-carbon heat

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2018-10-22 ‘Electrofuels’ that increase plane ticket price by 60% only way to clean up air travel, report finds

Aviation is currently on track to use a quarter of the planet’s annual carbon budget by 2050 ( AFP/Getty Images ) - click for full size image
Aviation is currently on track to use a quarter of the planet’s annual carbon budget by 2050 ( AFP/Getty Images )
Josh Gabbatiss

New fuels and accompanying hikes in ticket prices will be essential to clean up air travel and avoid the worst effects of climate change, according to a new report.
Aviation is responsible for 5 per cent of global warming, and it is on track to power through a quarter of the planet’s annual carbon budget by 2050.
Despite some fledgling efforts to develop electric aircraft for short-haul flights, air travel is proving one of the most difficult sectors to decarbonise.In its analysis, European green transport group Transport and Environment (T&E) found that replacing fossil fuels in planes with “electrofuels” is the “only technically viable solution that would allow aviation to exist in a world that avoids catastrophic climate change”.
This will present a challenge to consumers as well as the industry, as the expense of these fuels means the cost of a plane ticket is projected to rise 58 per cent if they replace kerosene in all aircraft.

“The good news is that radically cleaner aviation is possible even with today’s technology,” said Andrew Murphy, aviation manager at T&E.
“Getting to zero starts with properly pricing flying and progressively increasing the use of sustainable synthetic fuels.
“There is a cost to this, but in light of how cheap subsidised air travel has become, and the incalculable cost of runaway climate change, it’s a price worth paying.”

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2018-06-30 Savings and Renewables - The Way to Zero Carbon by 2050

The Way to Zero Carbon by 2050 - click for full size image
The Way to Zero Carbon by 2050
UK Greenhouse Gas Emissions 2015
Electricity 29%
Transport 24%
Heat 30%
Agriculture 10%
Other 7%
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2012-05-25 Condensing Boiler with Annual Efficiency of 96%

Gas Efficiency v DHW per day - click for full size image
Gas Efficiency v DHW per day
How is it Done ?
Low Boiler Return Temperature
Effective Radiators
Making Measurements
Gas Efficiency vs Domestic Hot Water per day
But condensing boilers are nothing like enough
The true merit of heat from Large CHP plants
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2013-10-09 Electricity from Wind and Storage

Electricity from Wind and Storage
This presentation was given to a meeting of the South Essex Area of the Institution of Mechanical Engineers in Chelmsford on 9th October 2013.
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2022-06-18 Nuclear Insecurities

This is a three-page re-cast of 2016-08-09 Nuclear Insecurities (below).
It includes 16 criteria under the original 10 headings, supported by 21 references.
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2013-10-22 Auto Graphical Insights: Learning from Plots of Car Data

This presentation was made up of three topics: - Data for all cars on the UK market - fuel consumption and CO2 (taxation) - Data from running a Model Year 2000 Toyota Prius - Data comparing Lifecycle CO2 of ICEV on renewable fuel with BEV on renewable electricity
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2018-10-12 The New Danish Climate Plan — Together For A Greener Future

Together for a greener future - click for full size image
Together for a greener future
As I noted in earlier posts about the Danish government’s plan to phase out diesel and gas cars by 2030, a full plan for emission reductions over the next 12 years would be revealed this week. And indeed it was. The plan is called “Together for a greener future.” This plan is the second of two parts. The first part was the “Energy — for a green Denmark” which was boosted considerably in the rare consensus by all parties in parliament in July where for instance the plans for adding 8 gigawatts (GW) of offshore wind power was tripled to 24 GW.

While Denmark is a pretty insignificant country in the scale of things, it was actually quite an achievement to reach bipartisan agreements on upping the game as opposed to the more common dismantling. I remember that Thomas L. Friedman played with an idea in his 2008 book “Hot, Flat and Crowded” where he imagined the US being China for just one day and how that could make so many rules come into effect, fast. Well, the current president is trying to do just that, but unfortunately he has yet to push rules on avoiding catastrophic climate change. My point is that it was very refreshing to witness this consensus in July, and it should serve as an example to countries with much bigger impact.
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2017-07-10 Climate and Energy Topics

Topic 1) emphasises the urgency of energy transition.

Topic 2) is the main focus of the document, with the paper by Sgouridis et al, 2016.
This identifies the relationship between the remaining fossil fuel emissions cap, the transition time, and the required investment in Renewable Energy (RE) supply plant.

Topics 3) and 4) refer to the initial conditions prior to the energy transition.

Topic 5) compares the Energy Return on Investments (EROIs) of Renewable Energy (solar and wind power) supply measures with the weighted average value of 20 assumed by Sgouridis et al.
Topic 6 is concerned with the global limits of renewable power sources.
Where Topics 3) and 4) deal in UK quantities, Topic 6) deals in Global quantities. However, the UK must expect to use only a proportionate share - e.g. equal per capita.

Topics 7) and 8) consider energy demand measures as complements of the supply measures assumed by Sgouridis et al. They refer to two papers by Cullen and Allwood et al, 2010 and 2010.
Including energy demand measures will greatly ease an energy transition within the constraints, such as 2 C global warming.

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2021-09-29 Nuclear Power and the EU Taxonomy

Around September 2021, the European Commission considered the inclusion of nuclear power in the taxonomy for future investments in energy.

This was based on a single report from the European Joint Research Centre, which still has close links with the nuclear industry and is widely perceived as playing a promoting role for nuclear energy within the European Union.

The JRC Report ignored the report of the German Ethics Commission for a Safe Energy Supply of 2011, which had lead to Germany phasing out nuclear power by 2023.

The European Commision also ignored 'Sustainability at risk, A critical analysis of the EU Joint Research Centre technical assessment of nuclear energy with respect to the "do no significant harm" criteria of the EU Taxonomy Regulation, of 2021-09 by Dr. Christoph Pistner, Dr. Matthias Englert and Dr. Ben Wealer, for the Heinrich Boell Foundation.

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