Saturday, 21 December 2013

DECC Energy Trends - UK energy decline continues

The latest Energy Trends have been published by DECC, so here's a summary... (all graphs are copied from the publication)

Unsurprisingly, the upward trend in net UK energy imports continues:

UK Net Energy Import Dependency Q3 2013

At least fossil dependency is coming down, though this includes nuclear:

UK Fossil Fuel Dependency Q3 2013

Coal

Coal mines have been closing - production is down 32% over last year. Imports are up 12%, and mainly come from Russia, Columbia and the USA. Total consumption is actually down 2.8% on a year ago, due to a reduction in the use of coal for generating electricity - coal use in other areas increased significantly.

UK Coal supply Q3 2013

Oil and petroleum products

The downward trend of oil and NGL production has continued, with a new post-peak low being hit in Q3 - down 7% on a year ago:

UK Oil production and trade Q3 2013

The following graph shows net trade in both crude oil and petroleum products. Unsurprisingly, the UK is importing a lot of crude oil, but our traditional position as an exporter of petroleum products is also being eroded as refineries are closed down:

UK Oil and product trade Q3 2013

Gas

Gas production actually declined less than in recent times, with a drop of 3.8% compared to a year ago. However, this is due to the return to production of the Elgin field, which shut down due to a leak in March 2012, rather than any pause in the overall decline. Demand for gas was down 8.2% on a year ago, due to warmer temperatures and less gas being burned to generate electricity.

UK Gas production and trade Q3 2013

Electricity

Electricity demand was down 0.6% compared to a year ago, although this combines a rise in industrial use and a fall in domestic use. Interestingly, domestic use was the lowest for Q3 for fourteen years! Electricity generated from renewable sources increased from 11.7% in Q3 a year ago to to 13.2% this year, although this is lower than the 15.4% reached in Q2 2013. Lower wind speeds resulted in reduced generation despite increased capacity, but this was compensated for by conversion of coal fire power stations to burn biomass instead. This is controversial though, as the biomass used is imported rather than being sourced from within the UK.

Generation from solar PV was up 31.9%, due to increased capacity, but hydro was down 26.6% due to low rainfall. In terms of installed capacity:
  • onshore wind was up 25% at 7,120MW
  • offshore wind was up 36.3% at 3,657MW
  • solar PV was up 57% at 2,542MW
  • anaerobic digestion was up 33.5% at 122MW

UK Renewable Electricity Generation Q3 2013

So, nothing shocking this quarter - a continued decline in fossil fuel production, a steady but slow rise in renewable energy, and a few new highs and lows set compared to recent years.

Mike

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Friday, 29 November 2013

IEA World Energy Outlook 2013 video presentation

The 2013 IEA World Energy Outlook is now out, but as it's pretty expensive, and long, you might like to watch the videos of the key facts being presented by some of the key people, that the IEA has kindly uploaded to YouTube. There's three - intro, main presentation, and Q&A:







Mike

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Thursday, 28 November 2013

Blown fuse in Norway reduces UK gas supply

OK, well not a blown fuse literally, but a circuit breaker tripped and shut down a chunk of output from the Ormen Lange gas field, which is one of the main sources of gas for the UK, via the Langeled pipeline. This story indicates the cut should only be for 24 hours. You can see the effect on this graph of Langeled output taken from a National Grid website:

Langeled shortfall 28Nov2013
Not a huge problem today, but this is exactly the kind of thing that can cause dangerously low supplies when it happens in colder weather - of which there is more to come in the next few months...

Mike

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Tuesday, 12 November 2013

Gas Bills 'Could Rise' Due To Low Reserves

Good to see that some people are aware of the issues the UK has with gas supply - Sky News in this case!

Gas prices could soar this winter if the national supply runs short during another cold snap, an energy expert has warned. Industry analyst Peter Hughes told Sky News that a "perfect storm" last March of extreme weather and the shutdown of two major pipelines caused prices to double. And that could happen again because the Government has refused to support the storage of more gas. "It foreshadows things to come," he said.

"The situation in terms of the risks will only get worse as North Sea production runs down and demand rises. That's the double whammy. And if you don't have more storage that translates into real vulnerability."

Britain currently stores enough gas for 13 days of supply. But Germany has reserves to last 69 days, in case there is a problem with the supply from countries such as Russia.

Even the gas storage that we DO have is not always working properly... News out today from Reuters says that withdrawals from Centrica's Rough storage site, the largest in the UK, will be limited for a few hours today and for four days from 21 Nov. More importantly perhaps, no gas can be injected back into for two weeks starting on 18 Nov. Presumably this is all down to maintenance work, but that really should have been completed earlier in the year... Let's hope we get a mild winter!

Easington Langeled Terminal

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Monday, 14 October 2013

Keeping the lights on? UK gas supplies and prices in winter 2013/14

With the UK weather turning colder over the last week, it's time to take a look at how our creaking gas and electricity infrastructure might cope this winter. I'll look at two areas - first, National Grid's Winter Outlook for 2013/14, and second, my own analysis of their data on UK gas storage.

Most of National Grid's Winter Outlook is dedicated to gas, as the supply/demand is affected much more than electricity by the availability of imports and how cold the weather is. The report indicates that there is, in theory, plenty of gas supply for even the coldest weather that the UK could experience. In practice, however, situations can arise where supplies are far from secure. For example, earlier this year an unseasonably cold March coincided with a brief outage in the Bacton Interconnector, resulting in gas storage levels dropping to record lows. LNG imports were low at the same time, due to demand from Japan and China - this has not changed since then. The situation is illustrated well by a graph from from page 13 of the Winter Outlook, where the 2012/13 line can be seen going off the cold end of scale in March:

Fig G1 from National Grid Winter Outlook 2013-14

This exposes the other flaw in our gas market - if it is cold in Europe at the same time as it is cold here, there's no guarantee that gas suppliers in France, Germany and elsewhere won't keep gas for local use due to obligations placed upon them. Alastair Buchanan, the former head of OFGEM who stepped down from his post in June after 10 years’ service, comments on this in an interview with The Telegraph, and goes on to say that uncertain gas supplies combine with ageing power stations in the UK to create a real risk of temporary blackouts if the weather is cold over the next few winters. Over 40% of the UK's electricity is generated by burning gas, so the two are closely linked. In the Winter Outlook, National Grid notes that the margin of spare electricity generating capacity this winter would only be 5% during a cold spell, compared to 17% just two years ago.

Moving on to the current state of our gas stores, here's some graphs I've plotted using data available from the National Grid website. First, here's the amount of gas in Long Range Storage, which is basically a single depleted gas field known as Rough, owned by Centrica. 2013 is in red on the graph.

UK gas long range storage 14 Oct 2013

As you can see, the main factor affecting the storage levels in Rough this winter is what happened last winter. The cold weather dragging on through March and April resulted in the storage level actually going below 'zero' (see my blog at the time for an explanation), so we've been playing catch-up all summer and the current level is lower for this date in October than any time since 2007 (when North Sea supplies were much greater than today...). There's little hope of the storage getting filled up to the higher levels seen in the past few years, partly due to physical limits to how fast gas can be pumped in and partly due to the rising cost as we go into winter. The rate at which Rough has been filled this year is shown in the graph below. Why they decided to take a break from filling it at some points is beyond me...

UK gas LRS injection 14 Oct 2013

You'd think that someone would be building more storage space for gas, but a recent story in The Telegraph noted that:

Centrica has written off £240m in wasted costs after scrapping its £1.4bn plan to convert an empty North Sea gas field into a gas storage site, and shelving another smaller project indefinitely.

The situation with Medium Range Storage is not so bad, though this doesn't fully compensate for the current shortfall at Rough:

UK gas medium range storage 14 Oct 2013

Short Range Storage is very low, but the amounts required to fill it up are relatively small. It does still need doing though, as these stores are critical to cover unexpected outages, which seem to occur regularly enough that the may as well be expected these days...

UK gas short range storage 14 Oct 2013

Of course, the question that most people will be asking is 'What will happen to prices?' Well, I said in a post on this blog in May 2013:
This can only translate into higher bills eventually, although the bumper profits made last winter may result in a short delay before this happens. Boosted gas prices will feed through into electricity prices too.
Lo and behold, one of the 'big six' have already put up their prices, and I'm sure the others will follow suit. I know they blame 'green taxes' and transportation costs, while the government blames fat profits in the upstream sections of the energy companies, and there is a little truth in all these claims, but the simple fact is that in the year ending 30 June 2013 we imported over 50% of our gas (data from DECC). This means that we are at the mercy of European and global demand and weather. The graph I've plotted below shows spot market prices as reported by National Grid over the past few years. The trend is clear, and the average price this year so far is currently up 18% on the year before, in part due to the very low storage levels at the start of the summer.

UK gas buy price history 14 Oct 2013


I will of course be keeping an eye on gas storage levels, and the weather forecast, over the coming 4-5 months, and don't forget you can check the current gas situation yourself at National Grid's Prevailing View page.

If you're wondering what else you can do, at the risk of repeating myself, you can:
  • Reduce demand (wear warmer clothes, turn the thermostat down, don't boil a saucepan without a lid on it, etc.)
  • Improve efficiency (insulate your house, draughtproof, double-glaze, etc.)
  • Use renewable energy
There's some examples of what we've done at home for the above points here, and you can check out some inspiring ideas on the Ashden website too.

Keep warm, and pray that we don't get too many days that look like this in the coming winter...

DSC_5464

Mike

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Thursday, 26 September 2013

DECC: UK imported more than half its energy in Q2 2013

The latest DECC Energy Trends was published today, and it's no surprise that the decline in indigenous energy production has continued. The killer statistic is:

In the second quarter of 2013 net import dependency rose to 51.4 per cent, up 9.6 percentage points from the second quarter of 2012.
The chart on page 10 tells the story:
Uk energy import dependency
Here's the reasons, all comparing Q2 2013 to Q2 2012...

Coal: Production was down 24.3% on a year ago, and the proportion of our coal that came from imports rose from 81.7% to 93%. These imports came mostly from Russia (nearly half of the total!), USA and Columbia.

Oil: Production was down 13.4% on a year ago, and the proportion of our oil and oil products that came from imports rose from 40.5% to 45.1%. On a related note, the closure of the Coryton refinery resulted in a 5.6% drop in production of fuels from oil.

Gas: Production was down 2.8% on a year ago, and the proportion of our gas that came from imports rose from 43.6% to 52.5%. These imports came mostly from Norway, Qatar and the Netherlands.

Electricity: Production from nuclear power fell 16.5% due to several outages, but wind and PV generation rose by 58.6% (due to increased capacity), and hydro generation rose by 29% (due to higher rainfall). We imported 4.4% of our electricity.

Renewables
The key points here are:
  • Share of electricity supply up from 9.7% to 15.5%, due to increased capacity for wind and PV and increased rainfall to power hydro stations. There was also more generation from power stations converted to biomass, although co-firing with coal has reduced.
  • There's now 1,918 MW of capacity on a feed-in-tariff, 127 MW of which joined during Q2 2013.
  • Total renewable capacity in the UK was 19.5 GW, compared to 14.2 GW a year ago.

Large Combustion Plant Directive
There's a helpful table (page 72) that shows how many of the coal power stations that were running over winter 2012/13 won't be running this winter. It's for reasons like this that Ed Miliband's promise to freeze energy prices seems a bit foolhardy.
LCPD hours remaining

The status of the plants that opted out is given in another table:
LCPD plant staus

This shows that there's 5,050 MW of coal plant that ran last winter and won't be running this winter, and another 2,268 MW of oil plant that has shut - this didn't run much last winter, but when it did run it was urgently needed... On top of this there's another 1,730 MW of coal plant that is currently open but will close at some point during this winter. DECC also notes that:
From 1st January 2016 the remaining large combustion plants will be subject to more stringent emissions controls outlined in the Industrial Emissions Directive (IED). Plants that chose to opt-out of this directive will be limited to 17,500 hours between 2016 and 2023.
So there's more shutdowns to come!

Mike

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Wednesday, 21 August 2013

North Sea faces record fall in oil and gas production

Montrose Alpha

According to a story in The Telegraph today, this year could see a record fall in oil and gas production for the UK:
North Sea oil and gas production could decline by as much as 22pc this year - the biggest annual slump on record – as maintenance on ageing infrastructure hits operations, the industry body has warned. Oil & Gas UK said it now expected average output to fall to between 1.2m and 1.4m barrels of oil and gas per day (boepd) this year, down from 1.54m boepd in 2012.
Full story
The decline has been in the region of 10% a year for some time now anyway, but some major technical issues in the past year have pushed production down faster than has been typical. In some ways this isn't all bad - it means that oil and gas is still there to use later on, when prices are higher. But there's always the risk that it's not worth repairing failing machinery if there's not much left to be extracted from a particular field, leaving it locked underground for good. (Of course, from a climate change point of view that's a good thing!)

This trend doesn't fully show up in the latest DECC Energy Trends, as it only covered up to Q1 2013, but even then oil production was down 15% from a year ago, and gas down 14.5%. It'll be interesting to see what's in the September edition...

On a slightly more positive note, it seems that more attention is being paid to thorium as a nuclear fuel. Obviously nuclear energy of any sort has numerous downsides, but thorium does seem to be be 'less bad' than uranium in several ways, so it'll be interesting to watch for more developments...

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