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Renew | August 2018

Wind-solar hybrid is a winning combo

<span style="font-weight: bold;">Ashish Mithani, Chief Operating Officer, KP Energy</span><br /> <br /> Throw some light on the major challenges faced by the wind segment.<br /> For the wind segment, bidding was a completely new arena. When bids were introduced, the industry was not mature enough to quote the right tariffs or measure the risks. As a result, the initial bids faced multiple challenges.<br /> <br /> <span style="font-weight: bold;">The tariff has fallen to a level which was never seen before. Do you think with the current tariff of around Rs 2.50 the projects are viable? </span><br /> Certainly, the projects are viable. The tariff of Rs 2.50 is not non-achievable. The tariffs may appear non-achievable if we peg them with the past perspective when the turbines gave us the comfort of Plant Load Factory (PLF) less than 30 per cent. Now the PLF is in the range of 37-42 per cent. Today, every manufacturer is aiming to achieve the Rs 2.50 tariff. It is achievable, but the problem lies in the execution. <br /> When one does bidding, they are majorly dependent on a dead stock study. You run the wind data on a mass which is available. At that point, one would not have acquired land for 250û300 MW project. If you take the history in India, no large, single-site project of 300 MW has ever been planned or executed. No single project of this size was even announced before. This also needs to change.<br /> <br /> <span style="font-weight: bold;">Do you think the commissioning of Green Corridor will solve the transmission issues or do you still see evacuation as a concern?</span> <br /> Nobody envisaged evacuation of 4000 or 50,000 MW of infirm wind power through a single sub-station to a single national grid. It would have been simply impossible 10 years before. Today, we have two different sub-stations of power grid, which are handling almost 5,000 MW of wind power. Execution of 60 GW of renewable power and SECI bids (which were nowhere in the road map) evolved as the Central Government started addressing challenges, especially to the realisation that the states cannot bring in 60 GW. Similarly, the evacuation issue also will get resolved. <br /> <br /> <span style="font-weight: bold;">Even after the country has gone ahead with the bidding process, some quarters of the industry still bat for closed bids and National feed-in tariff (FiT). <br /> Your comments.</span><br /> Can there be same wind speed across the country? Can there be a same PLF in the same location for different turbines? It is not possible. Similar is the case of FiT. FiT is not contributing to the well-being of the citizens of this country. So there should be no FiT and they should not think about it.<br /> <br /> <span style="font-weight: bold;">What is your take on the wind-solar hybrid target 2.5 GW?</span><br /> For State Load Despatch Centre (SLDC) or National Load Despatch Centre (NLDC), it is easy to have wind and solar together as the stability of the grid improves phenomenally, if both are going through the same sub-station. From the developer's perspective, it optimises the infrastructure cost or investment. So it is a win-win for both the players and transmission entities. Though 2.5 GW is a small target, for a start, it is good. There are certain anomalies that need to be looked at here. There is separate RPO for wind and for solar. Eventually, they have to remove the intermediaries in the department. <br />
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17 Oct 2016
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