4 ms·

I'm not sure what they're referencing there, but GWEC keeps better numbers and we're well over 400GW installed worldwide by now: http://www.gwec.net/wp-content

I'm not sure what they're referencing there, but GWEC keeps better numbers and we're well over 400GW installed worldwide by now: http://www.gwec.net/wp-content/uploads/2012/06/Global-Cumulative-Installed-Wind-Capacity-1997-2014.jpg http://www.gwec.net/wp-content/uploads/2012/06/Global-Cumula... We're adding more than 50GW/year now, which should easily put us over the amount of nameplate capacity nuclear installed worldwide. Within the next decade, wind will surpass Nuclear in actual twh of generation as well. If you assume nuclear is about 400GW installed worldwide and a 90% capacity factor, then wind would only need 900GW installed to match output at a 40% capacity factor. NREL just realeased data that shows potential capacity factors of 60% on over 2 million acres in the US: http://apps2.eere.energy.gov/wind/windexchange/windmaps/resource_potential.asp http://apps2.eere.energy.gov/wind/windexchange/windmaps/reso... Wind and solar are steadily eating world power generation.

Reason077 11y ago
I'm not sure what they're referencing there, but GWEC keeps better numbers and we're well over 400GW installed worldwide by now They may have been referring to installed capacity in the UK, not worldwide. 30GW by 2019 sounds about right. Wind supplied 17% of the UK's entire electricity demand in December 2015
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barney54 11y ago
Comparing wind and nuclear is not an apples-to-apples comparison. To make a valid comparison, you would need to compare wind + some kind of back up such as natural gas (or possibly some nuclear). There is a premium for reliable sources of electricity generation since you have to have reliable generation to avoid blackouts.
- toomuchtodo 11y ago
  You make an excellent point. Wind and solar can capture more $fiat per MWh if they purchase Tesla stationary storage and can deliver firm dispatchability (that premium for reliable generation you mention). Natural gas will make a fine stopgap until we have enough battery storage. https://en.wikipedia.org/wiki/Dispatchable_generation https://en.wikipedia.org/wiki/Dispatchable_generation
  - snowwindwaves 11y ago
    I am not aware of any market where generators are getting a premium for being dispatchable. I would be very interested in knowing what the value is. Certainly some markets have prices that vary through the day to give generators the incentive to generate when power is needed most if they have that flexibility.
    - pjc50 11y ago
      The UK system has a "capacity auction", separate from the spot price, which covers dispatchable generation. "Through the auction, government has procured 49.26GW of capacity at a clearing price of £19.40kW" (second link). Note units are kW not MWh. http://www.nationalgridconnecting.com/keeping-the-lights-on/ http://www.nationalgridconnecting.com/keeping-the-lights-on/ https://www.gov.uk/government/news/the-first-ever-capacity-market-auction-official-results-have-been-released-today https://www.gov.uk/government/news/the-first-ever-capacity-m...

Reason077 11y ago

I'm not sure what they're referencing there, but GWEC keeps better numbers and we're well over 400GW installed worldwide by now They may have been referring to installed capacity in the UK, not worldwide. 30GW by 2019 sounds about right. Wind supplied 17% of the UK's entire electricity demand in December 2015

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barney54 11y ago

Comparing wind and nuclear is not an apples-to-apples comparison. To make a valid comparison, you would need to compare wind + some kind of back up such as natural gas (or possibly some nuclear). There is a premium for reliable sources of electricity generation since you have to have reliable generation to avoid blackouts.

toomuchtodo 11y ago
You make an excellent point. Wind and solar can capture more $fiat per MWh if they purchase Tesla stationary storage and can deliver firm dispatchability (that premium for reliable generation you mention). Natural gas will make a fine stopgap until we have enough battery storage. https://en.wikipedia.org/wiki/Dispatchable_generation https://en.wikipedia.org/wiki/Dispatchable_generation
- snowwindwaves 11y ago
  I am not aware of any market where generators are getting a premium for being dispatchable. I would be very interested in knowing what the value is. Certainly some markets have prices that vary through the day to give generators the incentive to generate when power is needed most if they have that flexibility.
  - pjc50 11y ago
    The UK system has a "capacity auction", separate from the spot price, which covers dispatchable generation. "Through the auction, government has procured 49.26GW of capacity at a clearing price of £19.40kW" (second link). Note units are kW not MWh. http://www.nationalgridconnecting.com/keeping-the-lights-on/ http://www.nationalgridconnecting.com/keeping-the-lights-on/ https://www.gov.uk/government/news/the-first-ever-capacity-market-auction-official-results-have-been-released-today https://www.gov.uk/government/news/the-first-ever-capacity-m...