Cost of wind energy worldwide: Low and going lower

USA:

The the price of wind energy paid by utility buyers in the USA using 20 year power purchase agreements has give from: in 2006 the average PPA was 5c, in 2009 it was 6.8c in 2014 it was 2.3c and we do not have data for 2015, but it is probably lower.  This is lower than the wholesale price of electricity in the US.  Even with incentives like 2.3c production tax credit for 10 years the unsubsidized price paid for wind energy is less than 5c.  Even at such low prices about 8.6 GW were added in the US in 2015.

Brazil:

In 2015 Brazil saw competitive auction prices of wind of 4.78 US cents per kWh.

South Africa:

In 2015, South Africa wind energy was procured at 4.5 US cents per kWh, way below the price of new coal of 7 US cents.

Egypt:

In 2016, Egypt signed to procure wind energy at 4.7 US cents per kWh.

Mexico:

In 2016, Mexico had an auction of solar and wind.  394 MW of wind projects were awarded 5.5 cents to 4.2 cents per kWh.  What is really surprising is solar PV was awarded 1.8 GW prices came in at an weighted average of 4.5 cents, with lowest at 3.54 cents.