Power, coal and renewable energy minister Piyush Goyal says his sectors can generate investment potential of $250 billion, which will spur India to a long phase of double-digit growth. In an interview with ET, he also said he is upbeat about the revival of the power sector which saw some "irrational" behaviour in the past. The minister also does not believe raising tariff by an inefficient discom is a reform. Excerpts.In the context of LED I said a private company would never have been able to reach out to the length and breadth of the country in such a short span of time. In less than nine months we have been able to give out four crore LED bulbs. A private sector company could never imagine the scale, and would never have taken the risk of this high level of scale up. A government company with the backing of the government and support of states and discoms was able to such a massive roll out.I thought many people are complaining that the action is too fast and they may not be able to cope up with it. This year, 2015-16 will see bidding of nearly 12,000 plus mw in the solar sector. Now juxtapose that with the fact that since 2010 when the earlier government started the scheme, they did only some 3,000 mw. When I became minister, I think the figure was 2,500-odd mw. In 18 months it’s already reached 4,500. Now 12,000 mw of bidding, which will probably be the highest in the world. And the 1 lakh mw, which we are committed to doing and for which the roadmap is crystal clear by 2022 is the most ambitious programme ever embarked by any country in the history of the world. It’s only Prime Minister Modi’s leadership that could have even visualised this scheme of $100 billion.I had discussions with bankers and realised that they had decided not to fund UMPPs in the earlier framework. So we set up a committee under the former CVC along with eminent experts. The committee went into it with great details and finalised a new framework with which bankers are happy. I suspect you will soon start hearing something on UMPPs.By March, I think anything between three and five.I’m trying wherever possible, to focus on those that are closest to plug-and-play mode. Otherwise I have 12 in the pipeline, but I’m not in a hurry to do all of them. This country has a very comfortable power situation going forward. So I’d like to calibrate these plants with the demand-supply situation.If one goes by the CAG report or the CBI investigation the reasons become probably quite clear. In the urge to keep giving out coal blocks, randomly, indiscriminately and in a hurry between 2006 and 2009 particularly, we saw that the coal-based power plants were being set up across the country much more and much faster than what the country’s demand justified. So we saw very irrational behavior where generating capacity was ramped up exponentially, and was being touted as a success but without adequate fuel supply.There was not enough coal, gas supply was dwindling. There was not enough effort made to expand transmission capacity or complete them on time, and there was no effort, or the effort was a failed effort in 2012-13, because it was a halfbaked effort to restructure discom finances.Therefore the discom situation did not improve. They continued to bleed in losses, they continued to have high AT&C losses and cash losses. So power demand did not rise to expected levels.So oversupply, inadequate transmission ability to supply where demand exists and insufficient effort to create fresh demand. All of this put together, along with massive delays in setting up these plants because of delayed environment approvals, stalling of projects, decisions were not being taken in ministries at the speed with which they are now being taken.My sectors will be generating an investment potential of nearly $250 billion in renewable energy, transmission, generation, distribution, last-mile connectivity towards 24x7 power for 100% of India, and I stand committed to that. This will spur economic growth to double-digit levels in the days to come.My own guess is that by May-June next year, the country will see galloping growth. And possibly next year but certainly the year after that, India will have double-digit growth. That will be decadal growth. You will see years of double digit growth. The framework that PM Modi is building, the entire effort is to build a robust and holistic framework on the back of which India will create skyscraper types structures.They are impatient and I’m delighted that they’re impatient. You only expect something from somebody you have confidence can deliver. Even a poor man doesn’t ask alms unless he sees you have the ability to give. The fact that people have high expectation is very satisfying. They are demanding faster delivery, which keeps us on our toes and rejuvenates our passion and commitment to people.Who is investing in all the renewable energy we are putting up. All these Deendayal Upadyay Gram Jyoti Yojna (and other schemes), who will be the supplier of equipment? Every stalled power project that is being revived, who will be the supplier of equipment? Who will invest in cables, distribution transformer, smart meters, Who has supplied More than 4 croreo LED bulbs? In the past 27minutes, 5,000 more bulbs have been supplied.First of all I don’t set the tariffs. I don’t interfere with regulators. I believe that with the efforts of UDAY, cost of power and supply will fall significantly and will be passed on to consumers. More importantly, if you run a discom inefficiently and not doing your job well; that inefficiency you cannot pass on to the consumers. I don’t see increase in tariff as a reform, or a necessary way to solve the problems of discoms.