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Wind and solar energy are cheaper than fossil fuels

The cost of renewable energy generation is dropping and in some regions is now cheaper than building gas or coal-fuelled power stations.

The cost of electricity coming from renewable sources has been plummeting and we’re now reaching the point in which such energy is cheaper than burning fossil fuels. A situation that seemed like just a fantasy a decade ago has now become reality.

 

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This is highlighted by Bloomberg New Energy Finance (BNEF)’s latest research, which looks into power generation costs (the levelised cost of electricity, LCOE) in the second half of 2015 compared with the first six months of the year using thousands of data points from deals and projects from around the world. To calculate levelised production costs the full expense of financing, building, operating and maintaining power assets is considered.

 

BNEF’s numbers paint a clear picture: the costs of onshore wind and solar photovoltaic, the most widely used renewable technologies (putting hydroelectricity aside), are generally shrinking while coal and gas-fuelled generation are more expensive compared to the first semester of this year.

 

Seb Henbest, Head of Europe, Middle East and Africa (EMEA) at Bloomberg New Energy Finance explains how the report shows, “wind and solar power continuing to get cheaper in 2015, helped by cheaper technology but also by lower finance costs”. Coal and gas are getting pricier in part because of externalities and in part because traditional power plants are being used less, he adds.

 

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The numbers behind the trend

 

Here are some of the BNEF numbers that show how the average costs of renewables are beating those of fossil fuel technologies, expressed in US dollars per megawatt-hour (MWh).

 

Renewable technologies:

  • onshore wind has dropped from $85 to $83 globally
  • solar photovoltaic has declined from $129 to $122
  • offshore wind is getting cheaper at a slower rate, falling from $176 to $174 and remaining costlier than fossil fuel alternatives.

 

When it comes to fossil fuels, the trend is opposite:

  • coal has jumped from $82 to $105 in Europe and climbed from $66 to $75 in the Americas and from $68 to $73 in the Asia-Pacific
  • combined cycle natural gas plants have increased from $103 to $118 in EMEA and also climbed in other regions, reaching $82 in the Americas and $93 in the Asia-Pacific

 

Just as with coal and gas, the cost of nuclear power varies greatly in different regions and is also getting more expensive. In EMEA it’s around $158 compared with $261 in the Americas.

 

Looking at single countries highlighted by BNEF the gap between renewables and fossil fuels is particularly noticeable in places such as:

  • Germany, where onshore wind costs $80 compared with $118 for gas and $106 for coal
  • United Kingdom, where onshore wind comes in at $85 compared with $115 for both natural gas and coal.

 

In China, onshore wind ($77) is cheaper than gas-fired power ($113) but still much costlier than the coal alternative ($44). Solar photovoltaic is at $109.

 

“Generating costs continue to vary greatly from region to region,” says Luke Mills, analyst at BNEF, as they are influenced by a number of factors including the shale gas boom in the United States, the price of carbon emissions in Europe, countries’ differing regulations regarding nuclear power and different levels of incentives for solar power.

 

Read more at Behind Energy

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