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The Renewable Energy Centre

May 09 2013

New Waves in Tidal Power

Wind and wave power are my two favourite renewable technologies but they both sit at very different ends of the investment spectrum. As we all know wind power is now a significant contributor to the UK’s energy mix and I hope it will continue to increase its market share. Wave on the other hand is still very much at the development and testing stage with only two sites currently commercially operating. Wave and tidal power have really not quite made it onto the main political stage as a major solution provider for our energy needs.

As you might imagine, wave and tidal power is one of the UK’s biggest assets, being an island we have great potential to harness the power around our shores. However wave power is notoriously expensive, hard to install and the process full of regulatory challenges. According to an arTidal Kite and Turbine ticle in The Engineer magazine, the UK and Ireland have the potential to provide 20-25% of total European marine energy and could be worth £6.1billion to the UK economy.

What I do find exciting about this area of renewable energy is that there are many companies working on developing new solutions to harnessing the power of our waves and there are already many differing techniques of energy capture. Some of the more notable solutions include:

  • Surface following attenuators
  • Buoy
  • Oscillating wave surge converter
  • Underwater attenuators
  • Overtopping devices
  • Multipoint absorbers

Most of these solutions require high velocity currents to maximise energy output however a company called Minesto may have created a system which can work in lower tidal velocities in a cost efficient way.

The Deep Green is essentially a wing and a turbine which moves in a figure of eight formation. It is secured to the sea bed and due to its design can move 8-10 times faster than the current it is situated in. If proven the Deep Green could open up many more locations for tidal energy production.

The company is currently due to release a 3MW array in 2015 and a 10MW in 2016 to further prove commercial viability. I wonder whether this could be the boost that the wave and tidal power industry needs to secure more investment and move towards a more significant impact on the UK’s energy mix – only time will tell.

In order to attract developers and investment, the wave and tidal power industry has to offer a cost effective solution which has commercial viability and of course, enough power generation to make a difference.


Apr 08 2013

The Renewable Heat Incentive is delayed again

Biomass StoveSo, the wonderful ‘new world’ of the Green Deal is still in the planning stages – well it is when it comes to the Renewable Heat Incentive Scheme (RHI) for domestic property owners. Another year of waiting has flown by, with the Photovoltaic Feed in Tariff (PV FIT) in full swing, and the promise of the RHI shortly to follow. It’s been nearly 2 years since the RHI was due to be launched for the domestic market and now we hear of another delay to spring 2014.

To me there seems to have been a gross miscalculation as to how quickly the RHI could be set up and implemented. Consultation after consultation seems to have continued without any decisions made or tariffs set. How hard can it be, when the FIT for PV was already in place and a good benchmark from which to follow?

I realise that there are more technologies to consider with the RHI but there is so much data available now as to what outputs can be achieved in the domestic market  and therefore what tariffs could be applied. Much of the renewable energy industry for the domestic market has been holding its breath waiting for the onslaught of new business due to the Renewable Heat Incentive… it simply hasn’t come.

In order to help keep these markets afloat the existing incentive scheme has been extended but at what cost? The Renewable Heat Premium Payment Scheme (RHPPS)  only helps with the cost of the technology – not the energy it produces.

In my view, these delays only serve to highlight the Government’s lack of commitment to schemes for individual householders to save energy and produce less CO2 emissions through the use of low carbon technology.

What can be done? Not a lot, I fear, but simply more waiting around for tariffs to be decided. What is clear is that the scheme, if it does finally launch in Spring 2014, will only have been running for a year before it’s time for a general election, when polices and legislation may completely change all over again.

In an age where renewable energy is becoming so much more important and a necessity rather than a ‘nice to have’ these delays are simply not acceptable nor are they helpful in moving the UK towards a low carbon existence or its EU commitments and targets.


Mar 25 2013

Gas Supply Rationing to save UK reserves

A31 covered in snowWith the coldest weather in 50 years, the UK is experiencing an unexpected weather front which is creating chaos when we usually are starting to look towards tulips, daffodils, sunshine and lighter nights. Well if we lost all the pipelines feeding gas into the UK – then we’d only have reserves for 12 hours of gas supply.

Is this a new crisis – well not really! It is indeed true that the UK is very low on its gas reserves but then on a normal day there is only storage to supply the UK for 20 days. Due to the cold weather the demand for gas has been five times higher than is usual at this time of year. We need not unduly panic as there are 3 shipments on their way to the UK this week. The only slight worry we had is that a gas pipeline from Belgium unexpectedly shut down last week which has caused some concern.

However unless all routes into the UK were shut off, the 36 hour reserve would then be a matter of a national crisis. Even now there are rumours of gas rationing to ease the demand over the next few weeks.

The drama has increased gas prices to a record high which may also have a bearing on how much gas is supplied to the UK but more importantly how the end user is likely to pay for this increase in fuel costs.

We have become so used to switching on lights, turning up the heating and expecting our homes to respond to our requests. All this simply points towards creating a sustainable, greener energy source to mitigate potential weakness areas such as our gas reserve. Oh wait a minute, what about wind power?! What a great solution we have, sat right on our doorsteps, to solve many of the issues with our energy security and supply.

And only last week George Osbourne was turning to more reliance on shale gas imports to keep our prices down and our homes heated. This is just one simple lesson learned which should in fact encourage the government to do exactly the opposite, and turn to wind, wave and nuclear to save our bacon when it comes to our ongoing power supply in the UK.

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Mar 22 2013

Children miss out on Climate Change Education

Climate ChangeThis week it was reported by those who like to over bake the cake, that climate change is no longer part of the curriculum for children under 15 years of age.

The outrage comes as the words ‘climate change’ are no longer specifically written as part of the curriculum for children under the age of 15. Many groups have reacted to this by stating that it is important for young children to be aware of the environmental impact of climate change before choosing their exam subjects. Also that they are aware of what climate change means and how it could affect our lives and what we can do to take action.

Although it is very important that we all understand climate change from a global perspective but also an individual one, the headlines about it being dropped from the curriculum could be seen as an over reaction. Saying that, the children themselves have started a petition to reinstate the words to the syllabus and many teachers are at a deadlock both for and against.

Having read, what I considered to be a very balanced article in the Guardian on this matter, I have to say that I felt the backlash to be somewhat excessive. Looking at the specific wording in the proposed Keystage curriculum, there seemed to be plenty of scope for the teaching of climate change both from an environmental and social perspective. Although the words themselves were omitted, there were many references to environment, recycling, sustainability etc… All of the guidelines are there to direct teachers towards particular subject matters and there is certainly room for interpretation for classes which focus on climate change within the syllabus remit.

On the flip side, reading through more recent articles, children are very much in support of including the words ‘Climate Change’, to the tune of 12,000 who have signed a petition so far. The concerns mainly focus on the Keystage 3 syllabus for geography which have dramatically reduced the emphasis on climate change.

Tim Oates who is in charge of assessing the current curriculum has defended his position by stating it is up to individual schools to decide on the level of detail they teach pupils when it comes to climate change. He stressed the importance of returning back to the knowledge of science rather than the issues of science. In addition he has also called for an earlier introduction of algebra to children under the age of 11.

My humble opinion on this matter is one of caution. For me, climate change is one of the biggest challenges both scientifically and politically to affect the world, as a whole, over the last 50 years and it can not be ignored. Looking at some of the language in the curriculum, it does leave plenty of scope for the subject to be fully addressed at every level. The difficulty comes with individual schools and teachers and their view of how important the teaching of this subject should be. This is perhaps where there will be a discrepancy in the level of knowledge and education that children will receive across the UK.

So on balance, should the words be included – yes they should. Let’s be clear, climate change will be an ongoing problem for many years to come. It is both essential for everyone, no matter what age, to understand the science behind it and the social issues too.

 

Comments off | Category: Political Opinion, Renewable Energy | Tags:  ,

Mar 12 2013

Should the UK commit to a decarbonisation target?

Green Question MarkThere has been much debate over the last few years regarding the UK’s decarbonisation programme. For those who are unsure as to what this involves, below are a few points of explanation:

  • Although the UK already has renewable energy production targets and CO2 emissions targets it is widely thought that an additional target which starts at the source of power production would help further promote the commitment to climate change
  • Every power station which produces electricity also produces CO2 emissions
  • The idea is to implement technology which reduces CO2 at source, therefore producing electricity which is decarbonised at the point of distribution
  • The ideal decarbonisation figure is an 80% reduction than that of today
  • Decarbonisation would help to stabilise electricity prices to the consumer

The political debate which has been ongoing is with regard to the current coalition government’s reluctance to include a decarbonisation target for 2030 in the Energy Bill.

Many lobbyists think the target is essential to ensure continued investment in renewable energy projects in the UK as it makes a clear statement that the country is committed to low carbon power generation. Without the target many fear that the UK will be seen as a country happy to continue polluting the atmosphere if the focus remains upon gas as the primary power source.

The target would also help encourage investment in Carbon Capture and Storage solutions for the power industry to ensure ongoing low carbon power production from fossil fuels.

It is unclear whether the real reasons for the current reluctance is down to the opinions of one man or whether there are other underlying factors. Many believe that George Osborne is the bottleneck to moving forward on the establishment of a target.

Only this week six major energy companies jointly wrote a strongly worded letter in full support of setting a decarbonisation target as soon as possible.

So what is the upshot of all this? Why is it so important to add another target to those already in place. In my view it’s clear that time is moving forward and the options for changes within certain timeframes are reducing. These changes are not being made in time to support investment or to continue meeting the demand for electricity in the UK using renewable or low carbon solutions.

From what I have seen, the UK has always been able to meet a deadline. We have made some drastic changes country-wide over the years such as the move from town gas to North Sea gas and the implementation of new money. So where there is certainly a will do get things done, there is a way to meet the deadline.

My view is to get on with it and set the deadline and start the process of making the production of electricity a low carbon power across the board.


Feb 18 2013

The Wind Power Results are in!

It was reported recently in the Guardian that Wind Power Farm2012 saw another great leap forward for the wind power industry, not only in the UK but across the globe. A 20% growth was seen in 2012 totalling 45GW of power. Top of the pops were the USA and China installing 13GW each.

To be fair this is not something I thought would have been the case. China is still pretty active when it comes to fossil fuel power stations as they are still much cheaper for them to build and run than renewables.

However wind is doing its part when it comes to cost and in Australia it is now cheaper to build a wind farm than a coal fired power station. Obviously costs can vary significantly depending on the country but the overall prognosis looks very promising as time moves on.

Both China and the US have been slow to gain ground with regard to climate change and renewable energy but clearly seem to have embraced wind power as an effective means of generation.

Just this week, Obama is under pressure in his State of the Union address to commit to an aggressive climate change strategy and to assure Americans that the effects and consequences of excessive carbon emissions are already happening.

For such a small land mass, the UK sits 6th in the world for the amount of installed wind power and currently leads the table with regard to offshore capacity. This is a good story for the UK after recently falling foul of the European Court of Justice for failing to comply with new EU energy regulations.

Although the push to decrease global carbon emissions is now on the agenda, there is still a long way to go and despite these very positive figures, the overall investment to renewable energy production decreased by 11% over the course of 2012.

Much of the decrease can be attributed to some countries feeling the pinch from the ever changing economic situation, so although the decrease could be seen as disturbing, I hope that as and when the economy improves the renewable energy roadmap will be back on track.

It is however safe to say that there is still a very long way to go and even now there is still some debate and denial about the severity of the situation in some countries. I think it is plain to see that the effects of climate change are slowly creeping in and will only get worse. The demands of the last century on the natural resources of this planet have certainly contributed and will continue to do so.

Is there a case for pushing reduced global emissions and a renewable energy production target which is much more aggressive – I am pretty sure there is!

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Feb 07 2013

Carbon Permits – what are they really worth?

Power Station Carbon EmissionsDespite all the fresh annoucements about the Green Deal and the new Energy Bill, the UK is still struggling to meet its EU targets both for CO2 emissions and renewable energy generation.

This week there has been a lot of bad press over the carbon price – which has fallen to record lows, possibly highlighting that the trading of carbon permits is failing. Companies across Europe which emit CO2 can purchase permits if they exceed their required output levels but can also sell them if they have surplus. The buying and selling rate moves with demand but this week bidders didn’t even meet the reserve price of 5Euros per tonne.

This in itself is a worrying trend however my view of this paper trading of carbon is simply a money making exercise rather than one of controlling or reducing carbon emissions. In my humble view there should simply be a reduction cap which increases year on year (much the same as the renewable energy roadmap) so that companies invest in reducing their carbon emissions, rather than simply paying to increase them! Surely the money is better spent changing the wheels of industry which have lead us here but also to physically change the carbon dioxide levels.

Any kind of dramatic change takes time but the world has shifted in one century through an industrial revolution to create a world which relies heavily on the burning of fossil fuel. Much of the world’s economy is based around fuel and to initiate change in such a profitable sector will take time. However at the manufacturing or industrial end of the scale, ie where the output occurs, step changes could be made in relatively short periods of time to dramatically reduce CO2 output.

It may be a simplistic and shortsighted viewpoint  but is it possible that a paper trail which never ends and simply trades one way and the other in order to compensate for excessive emissions is the really the right way forward?

Industry is not just at fault, aviation, transportation and each individual homeowner holds much of the remaining responsibility. Although taxes are increasing in the aviation and transport sectors, there is currently no legislation or incentive for the majority of people to change the way they live, work and heat their homes. How would the carbon permit system work for the homeowner I wonder, would it even work at all?

Answers on 100% recycled postcard please!


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