Ecotricity Explains: Onshore vs offshore wind power
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皇冠体育app built our first windmill on a hill just outside Stroud in December 1996 and kickstarted the global green energy movement. Following that, we spent two decades building 24 wind parks across Britain, with 74 beautiful windmills that power over 56,000 homes.
Coupled with solar power, onshore wind energy was making huge strides towards decarbonising Britain鈥檚 electricity supply. Then along came David Cameron, nearly a decade ago now, who put in place new planning regulations that effectively killed off onshore wind power in Britain. Oh, and since their introduction, by our calculations.
Since then, the focus has been on offshore wind power. Last year, offshore reached approximately the same installed capacity as onshore wind, with . The marine environment is incredibly tough to construct in, but the turbines are huge and built in enough numbers to achieve impressive economies of scale. .
Will we ever build onshore again?
Around a year ago, the Tory government announced with a great deal of fanfare that they were 鈥榰nbanning鈥� onshore wind. by the Guardian shows that there have been no applications for new onshore wind projects (other than for private use) since the 鈥榰nbanning鈥�.
Britain supports onshore wind - recent polling shows even 鈥� and there a general election headed our way in the next few months. With it comes hopes of a new government that will unshackle the potential of onshore wind. It is still the fastest, cleanest and cheapest form of energy we can build.
In fact, it鈥檚 so much easier to build on land 鈥� and maintain and repair 鈥� that we could reach 100% green on the grid in 10 years and with no public money.
Energy security
The energy crisis and the war in Ukraine have brought home the importance of energy security in Britain. 拢50 billion a year leaves our economy and goes to fossil fuel states to energy imports. The most recent figures show that .
Wouldn鈥檛 it be better to invest that money in becoming energy independent through wind and sun? It would enable us to set energy prices at a national level, instead of being at the whims of global markets. And it would create jobs and opportunities all around the country.
It鈥檚 easily done. 皇冠体育app have the wind, the sun, the technology and the expertise 鈥� we just need the political will.
How do they compare?
Onshore and offshore wind power is effectively the same thing in different locations. But there are advantages and disadvantages to both. Here鈥檚 what you need to know:
Energy prices: Onshore wind is significantly cheaper than offshore. Construction is more complicated and more expensive, and access for maintenance and repairs has the same drawbacks.
Wind speeds: Offshore winds tend to be more reliable than onshore locations with higher average wind speeds.
Construction speeds: Onshore wind is really fast to plan and construct. Offshore wind鈥檚 marine environment means it is a lot slower and more difficult.
Energy connections: Large onshore wind parks plug into the national grid. Offshore schemes need longer, more complicated undersea connections, which are more expensive and lose more power on transmission.
Energy security: Energy security means producing as much of your own energy as possible. However, the attacks on the Nord Stream pipelines in September 2022 indicate that offshore wind is more at risk than onshore wind power in the event of any future conflicts.
Community schemes: Offshore wind parks are too expensive for anyone other than big corporations to get involved, keeping energy production in the hands of the few. Onshore wind is affordable and adaptable enough to be used for both large- and small-scale schemes. , if they want to get involved.
Ready to start turning your bills into mills?
and we鈥檒l use your bill money to build new sources of renewable energy and build a greener Britain.
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