Back to top
Reported by Vaisala on 15 November 2018

Improved Monsoon Winds Help Power Producers in 2018

After a prolonged period of decline, 2018 monsoon season brings significantly higher than average wind speeds across India.

(Courtesy of Vaisala Oyj)

Wind speeds in India during the 2018 monsoon season were significantly higher than normal, and up to 20% higher than long-term averages in some regions, according to wind performance maps Vaisala published today. These higher wind speeds will benefit wind farm production; this is welcome news for wind energy operators and investors, who have faced several years of lower-than-normal wind energy production during the monsoon period.

Because the monsoon season typically has the highest wind speeds of the year, the below-average wind resource in recent years has had a disproportionate impact on wind energy production and has caused concern in the sector.

Increased Wind Speeds Counter Recent Pattern of Decline

In contrast to recent years, Vaisala's measurements and analysis of the monsoon season show that wind speeds across India were up to 20% higher than the long-term average for periods of July, August and September - with notably strong performance in key wind power producing states, Tamil Nadu and Andhra Pradesh. The increase runs counter to an observable trend over the past 20 years of declining wind speeds, and stands in sharp contrast to resource data from the monsoon season in three of the past four years, which shows that wind speeds dropped well below the historic average.

Increasing Investor Confidence with a Data-driven Approach

This recent change in fortune will be welcomed by renewable energy investors in India and may help adjust perceptions of wind sector underperformance at a time when many energy assets are under scrutiny by lenders. Investment in the renewables sector has slowed following the recent cancellation of several large wind and solar tenders where the bids did not achieve the benchmark ceiling tariff.

While this year's monsoon wind performance was good news for power producers, wind energy developers must still find a way to demonstrate the value of investment in their wind projects, faced with long-term variability in wind speeds. Key to this is a scientific, data-driven approach to wind resource assessment.

"Improved resource performance over this past monsoon season, when set in the right context, can show investors the sector has real potential, and should signal a boost to investor confidence in India's wind industry," said Rajnikanth Umakanthan, Managing Director of 3TIER India, a Vaisala subsidiary. "The variability we see in resource performance underlines the value of using a long-term climate context when performing wind resource analysis. Currently, financial performance is judged against ever-lower tariffs - even in less windy states - so it is important to contextualise that with a longer-term view of climate effects."

References

[1]

Vaisala Oyj. Press release - Improved Monsoon Winds Help Power Producers in 2018. URL: https://www.vaisala.com/en/press-releases/2018-11/improved-monsoon-winds-help-po.... [Date Accessed: 15/11/2018].

Health, Safety & Environment

18 Dec | Highland communities in £28m funding boost

Highland communities will benefit to the tune of £28millon thanks to Britain’s newest onshore wind farm, built by SSE Renewables.

Health, Safety & Environment

24 Sep | Increasingly Sophisticated Use of Triton Data Reflects Growing Confidence In Remote Sensing

The diverse range of applications by European wind operators and developers spans wind resource assessment, bankable due diligence and noise studies.

Health, Safety & Environment

21 Feb | First reinforced material generated from recycled wind turbine blades

EDP Renewables, through its collaboration agreement with TRC, produces the first reinforced material generated from recycled wind turbine blades. These are the first results of the agreement signed with TRC in 2017 to develop viable and highly efficient alternatives for the recycling of decommissioned wind turbine blades.

Health, Safety & Environment

24 Sep | Increasingly Sophisticated Use of Triton Data Reflects Growing Confidence In Remote Sensing

The diverse range of applications by European wind operators and developers spans wind resource assessment, bankable due diligence and noise studies.