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Oil Production Vital Statistics April 2018

Oil Production Vital Statistics April 2018

On the World stage, momentous events are unfolding. The USA, UK and France have bombed Syria risking confrontation with Russia. The Israelis are more than a little concerned about Iranian involvement in Syria. And on the Korean peninsula, peace between N and S is on the cards spreading prosperity and more energy consumption for all. On the second tier, oil production in Venezuela and Mexico continue to tank. No one should be surprised, therefore, that Brent has breached $74/bbl. The only thing standing in the way of another severe oil price spike is the N American frackers going back more seriously to work. They may one day be joined by frackers in Saudi Arabia, China and Russia.


The chart below from the February OMR is one of the more important produced by the IEA showing the balance between supply and demand leading to either stock draw or additions. So important in fact that I have decided to leave it there from the last report 2 months ago so that it can be compared with the equivalent chart from the April OMR that is reproduced just below it.

The difference between the two charts are quite subtle but with dramatic impact. Data revisions result in crude oil stock draws for 7 quarters backdated from 4Q 18. This has meant that the IEA now sees OECD crude oil stocks at the 5 year mean at the present day. The momentum of the trend will see OECD crude oil stocks shooting to the low side. Even higher oil prices may be on their way.

Readers should note that since January 2018 I have been employed as a consultant at ETH Zurich. ETH are a well-kept secret, but are in fact the number 10 ranked university in the world, up there with CalTech, MIT and Imperial College.

…click on the above link to read the rest of the article…

The causes of the differences between European and US residential electricity rates

The causes of the differences between European and US residential electricity rates

The price of residential electricity has risen in lockstep with growth in renewable capacity in Europe but not in the US, and because of this European residential electricity rates are now roughly twice US rates. The reasons for the difference are a) that renewables surcharges are added to residential electricity bills in Europe but not in the US and b) that residential electricity bills in Europe have increased roughly in proportion to the amount of money spent on renewables growth. Residential rates in US states are set by state Public Utility Commissions that are legally obliged to set prices at levels that are fair to both consumers and providers. As a result the European bill payer pays for new wind, solar etc. while US renewables expenditures are offset by adjustments to the federal budget that are not itemized but which ultimately get paid by the US taxpayer.

A note before proceeding. Electricity bills in Europe typically contain renewable energy levies, fees, surcharges etc. that are paid to the electricity provider. How much of this ends up in the hands of the government is unknown, so in this post I classify these added costs as “charges” rather than “taxes”.

We begin with a map of the US “Lower 48” showing average state retail electricity rates in US cents/kWh in 2016. The map is dominated by blue colors, i.e. less than 15c/kWh. The data are from the US Energy Information Administration:

Figure 1: Average retail electricity prices in the US Lower 48 in 2016, US cents/kWh

And follow up with a map that covers roughly the same area showing average retail electricity rates by country in Europe in 2016. The color coding is the same, and rates are converted into US cents/kWh using the exchange rate at the time of converion (1 euro = 1.22 USD) so that they can be compared directly with the Figure 1 results. The data are from Eurostat.

…click on the above link to read the rest of the article…

A brief review of the New England electricity sector

A brief review of the New England electricity sector

New England’s transition to renewable electricity is complicated by differences between the generation mixes in and the renewables targets set by its six component states. New England’s approach to fostering renewables by replacing dispatchable fossil fuel generation with wind and solar also does not help. New England does not have enough pipeline capacity to feed its gas plants during high-demand periods when gas generation is most needed, and during the cold weather at the end of 2017 it had to mobilize essentially all of its remaining coal and oil-fired capacity to keep the lights on. If coal and nuclear plant retirements continue blackouts would appear to be inevitable during future cold weather periods. Barring a miraculous advance in energy storage technology New England’s electricity sector also has essentially zero chance of ever going 100% renewable. (Inset: 670 MW Pilgrim nuclear plant, scheduled for shutdown in 2019).

I’m always eager to add more electricity grid data to my collection, and regular correspondent Willem Post recently sent me 2017 daily generation and demand data for the New England Independent Service Operator (ISIO) grid that appear to be reliable and which I have used as the basis for this analysis. So a hat tip to Willem.

New England consists of six states in the northeastern US (Massachusetts, Connecticut, Rhode Island, New Hampshire, Vermont, and Maine) with a total population of 8 million and an annual electricity demand of ~115 TWh, about the same as the Netherlands. State locations are shown in the map below:

There are, however, large differences between generation mixes in the different states:

  • Connecticut: 50% nuclear, 50% gas (0% renewables)
  • Maine: 11% wind, 25% gas, 29% hydro, 27% biomass (77% renewables)
  • Massachusetts: 13% oil, 62% gas, 15% nuclear, 9% renewables
  • New Hampshire: 50% nuclear, 33% gas, renewables “most of the rest” (maybe 15%?)
  • Rhode Island: 94% natural gas, 4% renewables
  • Vermont: 16% wind, 5% solar, 56% hydro, 23% biomass (100% renewables)

…click on the above link to read the rest of the article…

The seawater pumped hydro potential of the world

The seawater pumped hydro potential of the world

As discussed in numerous previous posts the world will need immense amounts of energy storage to transition to 100% renewables, or anywhere close to it, and the only technology that offers any chance of obtaining it is sea water pumped hydro (SWPH) storage. Here I consider the practical aspects of SWPH and conclude that there are only three places in the world where a combination of favorable shoreline topography and minimal impacts would allow any significant amount of SWPH to be developed – Chile (discussed here), California (discussed here) and, of all places, Croatia. For the rest of the world nuclear remains the only proven decarbonization technology. (Inset, Valhalla’s proposed SWPH project in Chile.)

In the last few weeks I have wandered through Google Earth looking for prime SWPH potential and have found that most of the world has none (I have not looked closely at Africa). The coastal topography in most places is too low and flat, and where it isn’t the valleys lack good dam sites, and/or are full of people, and/or the sites are too far from the sea. The sites that do exist are also often in scenic areas where significant public opposition may be expected whether there are any people there or not.

This point was forcibly brought home to me by Euan Mearn’s comments on Scottish Scientist’s Loch Ness Monster of Energy Storage guest post, which proposed a 6.8 TWh SWPH upper reservoir at Strath Dearn in the Scottish Highlands. Considered purely in terms of potential Strath Dearn is probably the best SWPH prospect in the UK, but if Euan’s reaction to the proposal is shared by others the chances it will ever get built are effectively zero:

…click on the above link to read the rest of the article…

Energy Externalities Day 13: Tidal Stream Power

Energy Externalities Day 13: Tidal Stream Power

An introduction to tidal stream power was given on Monday in this post: “The MeyGen Tidal Stream Power Station: Pentland Firth, Scotland”. The simplest way to imagine tidal stream power of the MeyGen variety is an underwater wind turbine deployed in an area of high tidal flow. Two ebb and two flood tides daily produce four daily spikes in generation with nothing in between.

One aspect not covered in the above post was longevity and maintenance. This press release says this:

Sitting in 30-50 m of exposed fast flowing turbulent waters where the Atlantic meets the North Sea, the steel tripod gravity foundations have been designed from first principles to enable year-round turbine operation over a 25-year life with no maintenance, the awards website states.

It’s a bit ambiguous, but I believe refers only to the steel tripod base and not the turbine itself. But it does imply that the system is designed to last 25 years. It raises the question about repair and maintenance of the nacelle. Recovering the nacelle for repair and maintenance requires the services of a jackup rig and ship. Purpose built light-weight jack-ups are estimated to cost ~ €70,000 / day that could lead to hefty repair bills. If turbines break down and are left idle for lengthy periods this also negatively impacts electricity production and EroEI.

Previous entries in this series:

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power
Energy Externalities Day 6: Hydroelectric Power
Energy Externalities Day 7: Solar Photo Voltaics
Energy Externalities Day 8: Diesel
Energy Externalities Day 9: Solar Thermal or Concentrated Solar Power (CSP)
Energy Externalities Day 10: Tidal Lagoon Power
Energy Externalities Day 11: Geothermal Electricity
Energy Externalities Day 12: Wave Power

…click on the above link to read the rest of the article…

Energy Externalities Day 10: Tidal Lagoon Power + a roundup of results

Energy Externalities Day 10: Tidal Lagoon Power + a roundup of results

It’s day 10 of 13 on the Energy Externalities game and its become clear that player fatigue is setting in (or maybe its Easter Holidays). “I don’t want to play any more, scoring technology already proven to not work”. To all players, please stick with it, the results continue to provide indicators with some precision. More on this below the fold. To rekindle interest, I’m jumping to tidal lagoons that we have featured in a number of prior posts.

Tidal power comes in three main flavours: 1) Tidal barrage, e.g. La Rance in France 2) Tidal lagoon, e.g. the proposed Swansea bay lagoon and 3) Tidal flow, e.g. MeyGen in the Pentland Firth of Scotland.

This entry will look only at tidal lagoons since Energy Matters has looked into the proposals for the Swansea Bay lagoon on a number of occasions. If stamina lasts, I hope to include the now operational tidal flow MeyGen tidal flow project in the Pentland Firth of Scotland.

A Trip Round Swansea Bay
Swansea Bay Tidal Lagoon and Baseload Tidal Generation in the UK

Previous entries in this series:

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power
Energy Externalities Day 6: Hydroelectric Power
Energy Externalities Day 7: Solar Photo Voltaics
Energy Externalities Day 8: Diesel
Energy Externalities Day 9: Solar Thermal or Concentrated Solar Power (CSP)

A brief roundup of results to date

Counting Andy D we have 16 full-time players. I have begun to write this up as an article for Energy Policy. Having done some quite extensive searches, I have not turned up any analogous work done before. The closest I have come to is a survey of public opinion which ranked solar PV top while this work ranks PV bottom. This will make interesting reading for the politicians.

…click on the above link to read the rest of the article…

Energy Externalities Day 9: Solar Thermal or Concentrated Solar Power (CSP)

Energy Externalities Day 9: Solar Thermal or Concentrated Solar Power (CSP)

With solar thermal, I am beginning to wander further away from systems where I have a reasonable grasp of their operation. There are two main classes of concentrated solar power (CSP) namely parabolic mirrors that focus solar energy onto a pipe filled with water that raises steam and a central tower configuration where an array of mirrors focusses the Sun’s energy onto a central tower, raising steam to drive a turbine (inset image).

Note Ivanpah CSP plant in the USA covers 1,420 ha (3,500 acres) is rated at 329 MW gross and cost $2.2 billon to build.

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power
Energy Externalities Day 6: Hydroelectric Power
Energy Externalities Day 7: Solar Photo Voltaics
Energy Externalities Day 8: Diesel

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

…click on the above link to read the rest of the article…

Energy Externalities Day 8: Diesel

Energy Externalities Day 8: Diesel

Diesel powered electricity generation is a niche common on isolated island grids like El Hierro and in certain countries, like the UK, recently adopted as peaking plants. They have the advantage that they can quickly and easily be switched on and off and the disadvantage that they are expensive to run. Answering some of the questions below for diesel is a bit tricky. For example, when it comes to fatalities we need to consider fatal accidents in the Global oil production and refining industries. But diesel for power generation uses only a tiny fraction of global oil production (<1%?). Power diesel accidents therefore need to be pro-rated accordingly but then adjusted to the amount of electricity produced. Not an easy task to scale in your head.

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power
Energy Externalities Day 6: Hydroelectric Power
Energy Externalities Day 7: Solar Photo Voltaics

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

…click on the above link to read the rest of the article…

Energy Externalities Day 7: Solar Photovoltaics

Energy Externalities Day 7: Solar Photovoltaics

Solar PV is a multidimensional energy system difficult to evaluate on a global basis. Maximum concentration required from The Game players! First, there is solar thermal hot water, solar thermal power generation (also known as CSP) and solar PV. Today’s game is exclusively on the latter. And in solar PV there are two main families of panels: 1) thin film and 2) polycrystalline. Today’s game is exclusively on the latter. Add to that the fact that solar PV works much better at low latitude than high, not only from the resource perspective but also from the seasonal storage one. In short, solar PV makes much better sense in Arizona and Mexico than it does in Aberdeen. Politicians tend to see devices that generate free, clean electricity, while I tend to see expensive devices made from coal in China that produce electricity some of the time.

[Inset image: abject cognitive dissonance seems to be a feature of renewable energy enthusiasts and politicians who see environmental advantage in plastering the countryside with low power density renewable energy devices.]

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power
Energy Externalities Day 6: Hydroelectric Power

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

…click on the above link to read the rest of the article…

Energy Externalities Day 6: Hydroelectric Power

Energy Externalities Day 6: Hydroelectric Power

Hydroelectric power produces no pollution once the dam is built and the valley flooded. It is dispatchable and widely regarded to be the “Rolls Royce” of renewable energy. Based on trapping rainfall produced by solar energy trapped in high valleys that were created by plate tectonics that is driven by spontaneous nuclear fission within the lithosphere.  The Sun and The Supernova combine to produce this ultimate limousine of the energy world. But how do the costs and benefits of this silver ghost really stack up against nuclear, gas and wind?

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power
Energy Externalities Day 5: Wind Power

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

…click on the above link to read the rest of the article…

Energy Externalities Day 5: Wind Power

Energy Externalities Day 5: Wind Power

It’s now day 5 of the Energy Externality Game and time to move onto the first of the new renewables, namely wind power. Loved by Green groups who see only reduced CO2 emissions, wind farms are hated by many others who see a blot on the landscape. Here at Energy Matters we normally just see high cost noise being added to a grid that needs to be balanced from second to second with some precision. This high cost noise needs to be mitigated and the cost of that mitigation is normally borne by others, not the wind farm operators.

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity
Energy Externalities Day 4: Nuclear Power

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

I then go on to provide qualitative assessments of each measure for each electricity system. I have then developed a game whereby we assign a score against each measure on a scale of 1 to 10 where.

…click on the above link to read the rest of the article…

Energy Externalities Day 4: Nuclear Power

Energy Externalities Day 4: Nuclear Power

It’s now day 4 of the Energy Externality Game. Diesel generators were next on the list, but I decided to skip over that for the time being and to move on to the more exciting topic of nuclear power. Nuclear power has a long supply chain and needs to take into account U mining, ore processing and upgrading to yellow cake; enrichment and fuel manufacture; construction of enrichment facilities, reactors and power stations; operation of the foregoing; decommissioning and waste storage.

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT
Energy Externalities Day 3: Biomass-Fired-Electricity

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

I then go on to provide qualitative assessments of each measure for each electricity system. I have then developed a game whereby we assign a score against each measure on a scale of 1 to 10 where.

…click on the above link to read the rest of the article…

 

Energy Externalities Day 3: Biomass-Fired-Electricity

Energy Externalities Day 3: Biomass-Fired-Electricity

Its day 3 of the Energy Externality Game already and we move onto biomass-fired-electricity. Most biomass electricity currently resides in Europe, where much of the fuel is imported from North America. In evaluating biomass we need to consider the whole supply chain from timber operations in N America, transport to and from the wood pellet factory, transport across the Atlantic Ocean, off-loading and transport to power station. We then need to consider the externalities associated with power generation.

The Externalities of Energy Production Systems (Day 1 Coal)
Energy Externalities Day 2: Gas-fired-CCGT

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

I then go on to provide qualitative assessments of each measure for each electricity system. I have then developed a game whereby we assign a score against each measure on a scale of 1 to 10 where.

…click on the above link to read the rest of the article…

 

Energy Externalities Day 2: Gas-fired-CCGT

Energy Externalities Day 2: Gas-fired-CCGT

Day 2 of The Energy Externality Game and we are assessing gas fired power generation using a combined cycle gas turbine (CCGT). In scoring gas we need to take into account the whole of the gas exploration and supply side of the business (which is complex, see below), transportation of gas and the CCGT operation itself. I was a little disappointed in the level of audience participation yesterday, with only 11 participants in total, although the results are very interesting. It would be really good if we could push that beyond 20. Hopefully all of yesterday’s players will play again. Once you get in the swing it takes <10 minutes to compile the scores.

I am proposing to use 12 metrics to measure costs and benefits:

  • Fatalities / year / unit of energy produced
  • Chronic illness years / year / unit of energy produced
  • Environmental costs not covered directly by the system operators
  • Foot print of energy system per unit of energy produced
  • Energy system costs where energy source transfers costs to the transmission system
  • Energy system benefits where energy source provides a service to the transmission system
  • Environmental benefits derived from energy system operation
  • Taxes raised / year / for total energy produced
  • Subsidies paid / year / for total energy produced
  • Tax free cost of energy
  • EroEI
  • Resource availability

For the following 12 electricity generating systems

  • Coal-fired (Monday 19 March)
  • Gas-fired (Tuesday 20 March)
  • Biomass-fired
  • Diesel
  • Nuclear
  • Hydro electric
  • Wind
  • Solar PV
  • Solar thermal
  • Wave
  • Tidal
    • barrage
    • lagoon
    • stream
  • Geothermal

I then go on to provide qualitative assessments of each measure for each electricity system. I have then developed a game whereby we assign a score against each measure on a scale of 1 to 10 where.

  • 1=good

  • 10=bad

Note that the suggestion to move to a 5 point scale is under consideration and may be adopted, but today we are still using a 10 point scale.

Simply copy / paste the 12 metrics into a comment and add your score.

…click on the above link to read the rest of the article…

 

The Externalities of Energy Production Systems

The Externalities of Energy Production Systems

The economics term externality is a cost or benefit accrued by a third party from the actions of others where the third party did not choose to acquire said costs or benefits. The term has been widely adopted by the environmental lobby to describe negative impacts of energy production systems. What is all too often overlooked are the externalised benefits the same energy production systems provide. This post aims to summarise both internal and external costs and benefits of 12 electricity production systems employing 12 different measures.

[Inset image: The proposed Swansea Bay tidal lagoon power station. The proponents of the scheme were keen to emphasise the external recreational benefits offered by an afternoon stroll around the 9.5 km wall of the lagoon and sailing and boarding in the sheltered waters. But what about the environmental costs to migrating sea trout? And to changing the hydrology of the coastal ecosystem? How do you begin to compare the costs and benefits of a scheme like Swansea Bay Tidal Lagoon with a nuclear power station?]

In the environmental impact of energy systems, the term externality is used to describe harm done by the combustion of fossil fuels, particularly greenhouse gas emissions. The argument goes that the fossil fuel producers and consumers do not currently pay for this harm and should do so. The inevitable consequence of adopting these measures will be higher energy prices that spread energy poverty and hold back economic growth. It is therefore very difficult to understand why many OECD governments are preparing to introduce measures like a carbon tax that will simply impoverish their citizens and national economies.

…click on the above link to read the rest of the article…

 

Olduvai IV: Courage
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Olduvai II: Exodus
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