Department for Business, Energy & Industrial Strategy<\/a> Report: UK Energy in Brief 2018<\/em><\/p>\nOnshore & Offshore Wind<\/h3>\n
Clearly creating energy by harnessing wind has to be up there with the cleanest forms of energy production. If you leave aside the energy and material costs involved with the production of the wind turbines, onshore windfarms are an excellent option from an environmental perspective in that they produce no emissions and very little in the way of pollution (maintenance and part\/turbine replacement may produce waste and there can be issues over noise pollution).<\/p>\n
On the flip side though, the wind turbines have to be put somewhere, and whether this is in a field or off the coast of the UK, this is going to have an impact on the local environment. There have also been plenty of reports of birds and bats being killed by the blades of the wind turbines, which is clearly less than ideal from a vegan perspective. Some of the habitat loss can be mitigated by spreading turbines out on land that is used for other purposes, whether farming or meadowland or something else.<\/p>\n
Realistically though, many more birds and bats are going to perish and fish and other sea creatures be disturbed if we continue to destroy our planet, so making use of the wind when producing electricity has to be better than the fossil fuel options.<\/p>\n
Solar PV<\/h3>\n
Solar PV (or photovoltaic) energy production harnesses the sun\u2019s energy and converts it into electricity. As with wind farms, large-scale solar panel installation can lead to habitat loss for many animals. Unlike wind farms, it\u2019s not really feasible to include large scale solar panel facilities within areas of land that continue with other uses and so land degradation can also be an issue. There is also the potential issue that the chemicals used in the PV cells and in the products used to clean the surfaces of the panels could pollute the environment.<\/p>\n
Again though, it really comes down to the balance between the potential harm and the potential benefit to the environment, and there is little doubt that, especially when compared to the burning of fossil fuels, solar energy production is positive.<\/p>\n
Landfill Gas<\/h3>\n
Landfill gas involves the collection of methane from biomass that has ended up at landfill waste sites. This is arguably one of the greenest of all energy forms in that if the methane had not been captured it would simply escape into the atmosphere and thus contribute to global warming.<\/p>\n
Of course, from a vegan perspective, there is no way of knowing exactly what biomass has been dumped in landfill and it is almost certain that some of it will include meat leftovers and other animal remains. However, with the increasing number of people separating their food waste rather than sending it to landfill with other non-recyclable waste, landfill gas as an energy source is declining in the UK with food waste collections allowing a more efficient use of energy conversion without having to separate other rubbish found in landfill.<\/p>\n
Other Bioenergy<\/h3>\n
This section is a little on the vague side, perhaps alarmingly so given that it made up almost 30% of the total electricity produced from renewable sources in 2017. It needn\u2019t be shrouded in mystery however: bioenergy energy is simply the energy contained within biomass, which in turn is materials that come from various biological sources, including plant matter (sugar cane, straw, waste wood, crop waste and so on), animals waste products (manure, slurry, poultry litter, even fish parts), or from microbial fuel cells that convert chemical energy to electrical. Most bioenergy comes from burning the biomass directly, or burning the gas given off by the biomass.<\/p>\n
The process of anaerobic digestion is used by many energy firms. This process involves the heating of organic materials, for instance, animal slurry or manure, in the absence of oxygen. With the help of various microorganisms (which are not animals, for the record), methane is produced, which is then collected and burned to produce electricity in a similar way to how natural gas would be used in a gas-fired power station.<\/p>\n
What Is Natural Gas?<\/h2>\n
Natural gas is the stuff that comes out of the gas hob when we turn it on, and that is piped into the boilers that heat the water in people\u2019s home. It is also used in gas-fired power stations to produce electricity. According to the UK Department for Business, Energy and Industrial Strategy, the total gas consumption of the UK in 2017 was 74.3 billion cubic metres, which is the equivalent to the volume of about 30 million Olympic-sized swimming pools, or about 1 million times the volume of the largest ever hot air balloon (the Pacific Flyer, used by Richard Branson and Per Lindstrand to cross the Pacific Ocean in January 1991).<\/p>\n
Natural gas is made up predominantly of methane, with some ethane, propane, butane and pentane. It was created naturally (hence the name!) when plants, algae and some small animals were trapped between sedimentary layers of the earth millions of years ago. Because the remains of the organisms were effectively encased in air-tight tombs, there was no (or very little) oxygen present and hence they were not able to decompose in the same way that they would have had they been in the open. Instead, they turn into a substance called kerogen which is ludicrously abundant: there is estimated to be around 10,000 times more organic matter in the kerogen on (or under) earth than the total organic content of all living plants and animals!<\/p>\n
When heated by a combination of the pressure of the sedimentary layers above and the earth\u2019s natural heat, kerogen can convert into oil (at around 150\u00b0C) and gas (at higher temperatures). This can then be forced out of the pores in the rocks by the pressure and collects in gaps in the rock. These are sought out by gas exploration firms and once a source is found, it is drilled for and extracted before being refined, stored and piped to customers.<\/p>\n
Is Natural Gas Vegan?<\/h3>\n
If taken to extremes, given that natural gas contains the remains of some animals, some people would suggest that it cannot really be classified as vegan at all. As we\u2019ve noted numerous times on this site though, vegans can only really be vegans when it is \u201cpossible and practicable\u201d to do so. So, someone who happens to move into a house that has gas central heating would have to be extremely committed to the vegan cause to not heat their homes during the winter on the basis that there might be the remains of some animals from hundreds of millions of years ago.<\/p>\n
Especially as they can\u2019t just layer up with woolly jumpers given that wool<\/a> isn\u2019t vegan. But like a few other things, such as the use of medicines<\/a> and vaccinations<\/a> that have been tested on animals, there are times when the choices vegans have to make must take into account common sense and the bigger picture.<\/p>\nSo, Is Anything Truly Vegan?<\/h2>\n
As we have seen, every conceivable source of energy has real or potentially negative effects on animals. Burning fossil fuels is proven to cause climate change. There are potential environmentally devastating effects of a disaster at a nuclear power plant. Many renewable energy sources cause habitat destruction, danger to animals or potential for pollution, and many of the green energy producers use animal manure. What is a vegan to do?<\/p>\n
Well, when it comes down to it, the most dangerous thing that could happen to animals on this planet is for the environment to change to such a degree that animal life is no longer sustainable. As such, if taking the long-term vegan view, picking your energy supplier based on their overall environmental credentials could be wiser than simply focussing on whether or not they use animal slurry when producing their energy. Especially when said waste would potentially just be left to release its methane into the atmosphere anyway.<\/p>\n","protected":false},"featured_media":861,"template":"","acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.veganfriendly.org.uk\/wp-json\/wp\/v2\/articles\/860"}],"collection":[{"href":"https:\/\/www.veganfriendly.org.uk\/wp-json\/wp\/v2\/articles"}],"about":[{"href":"https:\/\/www.veganfriendly.org.uk\/wp-json\/wp\/v2\/types\/articles"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.veganfriendly.org.uk\/wp-json\/wp\/v2\/media\/861"}],"wp:attachment":[{"href":"https:\/\/www.veganfriendly.org.uk\/wp-json\/wp\/v2\/media?parent=860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}