So much has been said about the potential of renewable energy especially on solar power in the news lately. But there’s another renewable energy source that could significantly help us reduce our greenhouse gas emissions: Wind Energy.
Similar to other renewable energy source, wind power does not emit greenhouse gas emissions, and of course, the resource is free.
But this form of energy has one advantage over other renewable sources: its low carbon foot print. According to energy specialist James Conca wind energy has the smallest carbon footprint (along with Nuclear), only emitting 15 grams per kilowatt hour (kWh). Its emissions are largely from the manufacturing, installation and the maintenance of the wind turbines.
Development in solar energy has overshadowed the good news about wind power. But we should also take note of the progress wind energy has made.
In 2016, a total of 54.6 gigawatts (GW) was installed globally, bringing the world’s total installed wind capacity at 487 GW according to the Global Wind Energy Council (GWEC). China alone has installed 23.3 GW of wind power last year, and now has the largest share of wind power in the world with 42.7%. US also added more wind energy last year after installing a total of 8.2 GW.
Analysts at the Bloomberg New Energy Finance notes that “wind is now one of the main workhorses in power markets around the world.” And the BNEF predicts that wind power’s growth will continue as some 59 GW will be commissioned this 2017, beating the additional installed capacity in 2016.
Apparently, wind power’s potential must not be ignored.
In the Philippines, the World Wide Fund notes that our grid can accommodate up to 500 MW of wind power without hurting the grid. Plus, there are new technologies, which could make the Philippines a leader at least in the South East Asia (SEA) for wind power. While we have as much wind as our neighbor countries, the Philippines’ is friendlier to the generation sector, particularly on research and development compared to other SEA countries. Our restrictions on connecting to the grid are much less.
However, our government should be more supportive of the feed-in tariff for wind energy because, without it, development of wind power could be stunted. That’s a shame because developing this renewable source could help us shift faster to cleaner energy just like in the cases of other countries.
Last year, the wind power in the United King made waves as it generated more electricity than coal. This is a first in the country’s history. Coal power generation in the UK declined from 22.6 percent of the country’s overall energy mix in 2015 to 9.2 percent in 2016 with the shutdown of three major coal power plants.
Just last February, Denmark was able to generate sufficient energy from the wind to supply the power needs of the entire country. WindEurope reported that the country produced a total of 97 GW from wind, with onshore wind providing 70 GW and offshore wind at 27 GW. The volume generated was enough to supply to some 10 million average households in the European Union.
As of 2015, wind energy combined with solar only accounted for less than 0.1 percent of the Philippines’ energy mix. There is obviously more room for wind power just like with other renewable sources if we want to meet the country’s goal of cutting our emissions by 70 percent by the year 2030. And the best way to move forward in achieving our committed emissions is to shift our dependence on fossil fuels to liquefied natural gas or LNG for our ancillary needs.
Wind and solar energy are intermittent sources of energy. Thus, we need to beef up on our ancillary services to maintain the correct direction and flow of power as well as to address the imbalance on the supply and demand on the grid. Currently, we rely on traditional sources of energy for the security of our grid, which unfortunately, creates havoc in our environment and health.
On the other hand, natural gas is less harmful to the environment since its main component, methane, results in lesser carbon emission. Its carbon dioxide emissions are 30 percent less than oil and 45 percent lesser than other conventional fuels. Natural gas also produces less sulfur dioxide and nitrogen, which are precursors of acid rain and smog, respectively.
The benefits of depending on LNG rather than coal are undeniable. In fact, a study conducted by researchers at the University of Texas shows that natural gas and wind are the lowest-cost technology choice for power generation in the United States when cost, environmental effects and impact on public health are taken into consideration.
In the last two years, natural gas accounted for some 15 to 16% of our energy needs while coal dominated our power mix at 32 %. If we are committed to reducing our carbon emissions and saving our environment, then we should work harder in shifting away from coal and instead look at natural gas, solar and wind as viable options.