A Green Degree

This blog intends to bring a new perspective on all things 'green' and sustainable, covering (mostly) energy, politics, the economy & more, what I feel as the most pressing concerns we face. In short, sustainability needs to progress & become the social everyday. That's my passion, and our solution. Screw business as usual people!













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Ah the humble smart meter. Look how sweet that thing looks, I mean that is seriously cool technology. It means no harm either, really; all it wants to do is sit happily in your home, be it in the cupboard, by the electricity meter or proudly on your table, its sole job to read your energy use in real-time and display it in such a way that even the most technophobic amongst us can understand. So why all the bloody fuss and anger?

For those who aren’t too familiar with the ‘smart meter’, here’s a brief summary of them. Smart meters are clever electronic displays which hook up to your house’s energy systems, such as the electricity and gas meters, allowing it to analyse your daily usage and study how you go about your daily energy guzzling life. These can be plugged into almost any system you could throw at it and come in a HUGE variety of types, ranging from portable displays like the GE-invested Onzo one in the picture above, wall-mounted boxes, integrated meter systems, mobile and desktop applications and more, all with the key goal to make reading your energy usage as easy and simple as possible.

Most governments and energy suppliers in Europe and the US are beginning to roll out these smart meters in the millions to each household, generally for free (not something often advertised by energy companies), with installation taking mere minutes and the effects instant. The UK alone is attempting the world’s biggest smart-meter giveaway, planning to install 27 million starting now, a huge proportion of the country’s households. Considering how small and unobtrusive they are physically, they can be implemented in practically any household environment and barely impinge on your routine way of life.

Now here’s the crucial part - these meters, by reading your energy usage in real-time, can allow you to directly see how much electricity is being used, by what appliance if also hooked into the program, and how much this will cost you. All of these values can be quickly compared to past usage, say yesterday or at the same point last week, so that a proper context is given, rather than the potentially confusing and sterile lists given in your usual energy bills. 

From these hubs, which could be your smartphone, TV, computer or wall-display, you can then choose to limit the usage on certain items, set alarms or reminders of when not to use so much energy, such as around peak-load times when everyone is putting the kettle on between Eastenders, and generally control your consumption much more efficiently than previously capable. This is also useful from the suppliers and grid controllers point of views, as they will now be dealing with energy consumption on a much more predictable level, meaning that overloads or blackouts will become less frequent and power stations can be ramped up and down more accurately and avoid the loss of energy and release of heat when it is not necessary.

For instance, you may receive a bill one month stating ‘x’ amount of electricity and gas used. The following month, you utilise the smart meter for the first time and see that the washing machine, cooker and TV are all using a majority share of the energy, or that lights being left on is dribbling money out of your bank account. You turn these appliances off, or begin using them only during times of low-demand on the grid, when prices are slightly lower per kW (known as tariffs, which vary depending on time of day), meaning you consume less AND spend less. The next months bill comes in, and bang, you’ve knocked £40 off of it, all because you began smartly managing your consumption. What could be bad about that?

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Posted at 10:00am and tagged with: smart meter, energy, demand, consumption, electricity, gas, shale, fear, spying, texas, privacy, rights, house, uk, USA, guns, locals, grid, technology, science, politics, society, money, monitor, usage, smartphone, app, hack, wifi, wireless,.

I came across an article today priding itself on the subject of wind energy subsidies in the US and why investing in them any longer would be tantamount to breaking the law, and boy does the author do it with some vigour and confidence. Unfortunately, and I really doubt I will be the only one thinking the same thing, most of what this person writes is founded on ignorance, scientific falsehoods and a basic hatred for wind energy in any of its forms.

The article, titled ‘We Must Stop Subsidising Wind Power’, which you can find in the link at the end of this post, focuses on a myriad of detrimental effects the Federal Production Tax Credit (PTC), a hotly debated topic currently, as it stands to be shelved come the end of 2012, with so far no hope of a successor. While there are many powerful and well-informed societies, associations and individuals lobbying for its extension, its pieces like this which seriously undermine rational thinking.

Supposedly, American wind energy, and by logical assumption, the entire industry, is unreliable, severely expensive, economically damaging and highly dangerous to the environment, seemingly to the same degree that oil and coal are; a real and direct threat to the green side of life. It is simply deemed ‘not environmentally safe’. What an absolute load.

Let’s start with the first point, wind’s unreliability and thus pointlessly impractical employment as an energy source. The crux of the argument here is that due to the natural flux in wind strength and speed, turbines are entirely dependent upon fossil-fuel based sources to prop them up (I know) and therefore the price of this is passed onto consumers like you and me. Aside from this, it isn’t helping us reduce our emissions nearly as much as we hoped.

Yes, wind is unreliable as a quantity, just like market prices for fossil fuels or the accessibility of reserves, but this hasn’t stopped wind becoming THE primary renewable energy source worldwide, demonstrating the biggest growth rates and deployment percentages of any type. Not only this, but some of the leaders of free political-thinking in regards to clean energy sources have proven this is not the issue it is made out to be. Germany for instance powers over 8% of it’s needs through wind, and has demonstrated that the apparent reliance on oil or gas for baseload on the grid is not true; wind and solar alone can power a nation if handled rationally and smartly, something the US is quickly catching onto. Only last year, the US installed almost 7GW of wind, up 31% on 2010, and could meet 10% of energy requirements in six greedy states, a hell of a lot more than most, and installation prices have also dropped, hitting just $2.1 per watt, down 10 cents on 2010.

With smarter systems, demand-response software and upgraded grids, all technology which is not only well established and on the rise but relatively cheap to put in place, the apparent issues with fluctuating wind and lulls in power can be negated almost completely. Combine this with CCGTs and solar, a nation as hungry as America can happily guzzle electricity without so much as a mention of oil, coal or shale ‘something’.

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Posted at 2:01pm and tagged with: wind, energy, power, electricity, grid, america, USA, romney, PTC, federal, tax, credit, subsidy, renewable, solar, turbine, birds, bats, Environment, public, money, economy, jobs, news, rebuttal, society, installed, germany, china, trade,.

Germany’s renewable share for the first half of 2012 has recently been released, and guess what, they’re thrashing the majority of EU nations comfortably, reaching 26% overall, a staggering increase from 20.5% during the same period last year. That means that over a quarter of the energy filling the German grid was produced purely by renewable means, and that is something they should be seriously proud of, and rubbing in our faces, as I’ll explain below.

What is even more interesting about this event, is the specific mix of renewables used in accomplishing this task. Wind sits in gold medal position with 9.2%, with biomass (surprisingly) taking second with 5.7%, whilst solar PV follows closely behind with 5.3%, expanding by over 40% in comparison to last year. That alone is an impressive stat to contend with, and was no doubt bolstered by Germany’s generous FiT, which although was recently slashed to save on funding, has been highly successful in generating consumer interest in solar as a viable energy alternative. 

Hydropower boosted 25%, up to 4% in the overall mix, with all other renewables completing the lineup. 

It’s no surprise that wind energy takes pole on the list given how perfectly flat, large and windy Germany as a landscape is, and their heavy involvement with the cheapest of all renewable technologies. Many have attributed the extra-impressive results to the weather this region of Europe has been experiencing over the past 6 months, with abnormally high winds spinning up the turbines country-wide, torrential rains over-powering the hydroelectric dams, and in the later parts of the year, intense solar radiations and clear skies bathing the abundant solar panels in beaming energy. 

Then again, attempting to diminish the feats achieved by the German renewable grid by stating it ‘was the weather which made it so damn good’ is a tad cheeky, considering the very point of many clean energy sources is that the sun and weather itself drives the production. If we have optimal weather, then they’re working exactly as planned.

What was surprising is the biomass share, which was much more than I thought had been invested in, with this form of energy generally not so high on a country’s energy list. I’m assuming that good recycling programs and clever biomass burning policies mean that Germany’s energy production is relatively high here, although actual year-on-year growth has been the smallest in this sector, just 7.5%.

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Posted at 10:11am and tagged with: energy, germany, EU, america, renewable, solar, wind, PV, biomass, clean, technology, hydroelectric, UK, economy, politics, news, electricity, grid, 2012, weather, climate, sun, france, spain, green, jobs, investment, morals, psychology, global,.

This is simply a great idea, I just want to start by saying that. I love and am in awe of the vision and prospects this plan could bring to fruition, and it seems so ingenious to boot.

A future in which continent-spanning electricity grids feed the many hungry nations of Europe, Iceland and N. Africa has recently been plotted out by multiple energy ventures and renewable project giants such as DESERTEC and the EU. As you can see in the map above, the grid would stretch from the Saharan Desert, through all of Europe, up into Scandinavia and across the ocean to Iceland, connecting the entire region into one ‘energy-continent’.

This plan was initially suggested when people began noticing that energy projects in the UK, Europe and Iceland, as well as those in the deserts of Africa, were actually doing things thought irrational, uneconomic and plain stupid (think DESERTEC). Once this realisation set in, the idea of a pan-European/Saharan grid quickly formed.

With lines already laid connecting Ireland to the UK, France, the Netherlands, and now a record-breaking 950 mile long cable between Iceland and the UK, with plenty more in the works, this initially crazy daydream is rapidly becoming reality. 

What is the real beauty of this project however is the renewable side of things; the whole grid will be supplied by low-carbon tech alone, none of that fossil fuel nonsense. As each country associated with the super-grid generates their renewable energy through different means, such as geothermal in Iceland, wind in the UK, or hydro in the Scandinavians, it plays to each and every country’s specialities. Rather than laying new lines and sticking wind turbines somewhere that ain’t windy, the grid will transport wind energy to the required regions from those nations which can easily provide. 

With peak times being met by green energy flying in from abroad, for the states that have proven their worth in one or two particular renewable energy sources and produce surpluses at a consistent level, the monetary rewards are tantalising to say the least. Think of a scenario thus - France fears it can’t supply the energy needed to run its nation at full pelt, so it calls on the super-grid to supply some wind energy from us Brits, supplemented by some Swiss hydroelectric. Meanwhile, the Sahara (pumping out silly amounts of solar energy) is sending sunlight to Norway and Spain, and receiving a tasty return on their energy investment. It’s a complete win-win situation.

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Posted at 10:02am and tagged with: renewable, energy, DESERTEC, EU, UN, grid, africa, sahara, europe, france, UK, wind, solar, hydroelectric, hydropower, fossil fuel, geothermal, science, policy, world, economy, money, smart, clever, amazing,.

After just 14 months of preparation and the collaboration of 21 countries, the Indian state of Gujurat has just turned on the world’s largest solar powered plant, to the tune of $2.3 billion and a 600MW generating capacity. Given its size, this is more of a solar-city than a mere plant, coming in at 5,000 acres, producing as much energy as a well-oiled (forgive the pun) fossil fuel plant or nuclear reactor.

With the advent of this new addition to the grid, India plans of powering forward into the renewable future with goals of 15% by 2020, with current values sitting around the 6% mark. Now that’s not nearly as ambitious as some of the other keen-on-green nations, such as Denmark’s wild 100% mix by 2050, or the 30%-40% goals of the UK, Germany or other Scandinavian players, but it’s a huge step in the right direction. 

Given India’s stance on the global stage in the last climate talks, touting itself as a solar leader with the technology to back its claims, it would finally seem things are coming to fruition. Further investment of $400 million has been laid out for promotion and advancements, and residential solar is being pushed as the next step for India. 

Unfortunately, this latest project pales in comparison to the TuNur proposal in Tunisia, part of the DESERTEC initiative focused on building solar plants in the African deserts. This whopping 2GW plant will dwarf even the Gujarat attempt, and plans to be complete by 2016. This plant however takes the form of a concentrated solar power generator, whereby panels direct sunlight onto a single collecting tower, producing intense heats to boil water and spin turbines. 

The one question that does arise in reading these, to me at least, is that of how many more similar builds can be undertaken before space becomes a serious issue? In countries devoid of deserts of wide open, flat spaces (think Japan, SE Asia or many EU nations), there is unlikely to be room for multiple builds in similar scale to the Indian or Tunisian effort, and unless urban spaces are integrated fluidly, it’s a real stumbling block. 

However, considering the rapidity at which solar efficiency is rising, and the introduction of tech like the ‘black’ cells, which can capture near-100% of the sunlight, or 3D panels which double or triple conversion rates, similarly powerful plants could become smaller and smaller. 

Anyway, you only need to look at this below image to see that us humans have PLENTY of solar energy at our disposal, we just need to actually use it!

Posted at 5:16pm and tagged with: solar, Gujarat, India, concentrated solar, power, energy, electricity, grid, denmark, EU, UK, climate, DESERTEC, Tunisia, desert, renewable, sunlight,.

There is a basic argument banded around by fossil fuel enthusiasts and those not in favour of a switch to the low-carbon world we so desperately need, one which involves the idea of baseload power, a term common in the energy industry. Effectively, the baseload level, is that amount of energy required at all times by the particular country needing the juice and does not generally fluctuate around a relatively low level of consumption, sitting at the bottom of the energy pile as seen in the above graph. This is generally the responsibility of a select few fuel burners, such as gas, coal or nuclear, which can be left turned on and running at 80-90% of their capacity for long periods of time, fulfilling the need for an ‘always on’ baseload. 

However, when demand rises, such as during hot summer days or tea-breaks between popular programmes (think Eastenders in the UK and our affinity for tea), the energy required increases and something else has to provide that electricity. This is handled via newer nuclear reactors, older coal firing plants or hydroelectric to name a few, and instead are only capable of short periods of energy production which can add some extra power to the grid, keeping us happy in our homes. Further peak-load units tend to function only in times of serious energy use, and are typically gas turbines.

The difference between the two forms is that the former are much less able to quickly turn on/off, especially in the case of nuclear, which can take up to 2 days to cycle back up to full power once tuned down, and thus are left on almost constantly. In comparison, the latter units can be brought online and vary output relatively flexibly, allowing them to be peak providers without the worry of long start-up times or shutdowns. Therefore it follows that there must always be a constant unit producing energy, and that a system made entirely of unpredictable and inflexible producers would likely under-/overload the grid. 

This is where renewables come into the mix. It’s easy to see that wind and solar energy rely on some pretty unreliable factors, but are the most heavily invested and advanced clean techs of our time, and are therefore the immediate replacement for current energy producers. This unreliability however is what is putting those who follow the baseload crowd off. Baseload simply cannot function on a 100% renewable mix they say, as wind won’t always blow and sun won’t always shine, meaning periods of overload, which current storage technology can’t handle, along with moments where supply cannot meet demand, even during the lowest points of the day. In this respect, to dump coal and nuclear in favour of green would condemn the grid and the prospect of constant electricity to an early grave. A convincing, but simplistic and outdated view.

In reality, the integration of renewables into the mainstream grid to counter baseload has been done already, with both ease and success. The German Renewable Energy Agency recently produced a study simulating the possible scenarios involved with switching to heavily renewable mixes over the current dirty mix with the odd wind farm or solar panel. Their conclusions appeared to indicate that, given smart modelling and prediction of green energy production, enough renewables (>80% of total production) can easily fill the baseload-gap, with peaks producing enough electricity to carry out the jobs of both the intermediate and peak-load units.

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Posted at 1:05pm and tagged with: baseload, energy, nuclear, renewable, sustainability, grid,.