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Leonard Hyman & William Tilles

Contributor since: 08 Dec 2015

Leonard Hyman & William Tilles

Leonard S. Hyman is an economist and financial analyst specializing in the energy sector. He headed utility equity research at a major brokerage house and has provided advice on industry organization, regulation, privatization, risk management  and finance to  investment bankers,  governments and private firms, including one effort to place nuclear fusion reactors on the moon. He is a Chartered Financial Analyst and author, co-author or editor of six books including  America’s Electric Utilities: Past, Present and Future and  Energy Risk Management: A Primer for the Utility Industry. 

You can find Leonard Hyman's lastest book Electricity Acts on Amazon 


William I. Tilles is a senior industry advisor and speaker on energy and finance. After starting his career at a bond rating agency, he turned to equities and headed utility equity research at two major brokerage houses and then became a portfolio manager investing in long/short global utility equities. For a time he ran the largest long/short utilities equity book in the world. Before going into finance, Mr. Tilles taught political science .

Latest articles from Leonard Hyman & William Tilles

  • Iron-Air Batteries Could Be The Breakthrough Energy Markets Are Waiting For

    Published 26 August 2021 | viewed 6,221 times

    Last year, we made a financial projection for the price of electricity long term, with or without decarbonization (“Electricity decarbonization is not that expensive, so…

  • Will Activist Investors Succeed In Transforming ExxonMobil?

    Published 23 August 2021 | viewed 2,317 times

    As Oil Price readers know, the tiny activist hedge fund, Engine No. 1, challenged management and won three seats on Exxon’s board of directors back…

  • U.S. Utilities Could Face Slew Of Climate Lawsuits

    Published 16 August 2021 | viewed 2,166 times

    Several years ago, a major US electric utility, wrote in its 10-K , a document filed annually with federal securities regulators, that it could not…

  • The Electricity Crisis Is A Major Problem For California's Governor

    Published 07 August 2021 | viewed 5,440 times

    Another electric utility transmission line has been implicated in a deadly California wildfire. Since mid-July, the Butte fire in Plumas County in the Sierra Nevadas…

  • The Largest Oil Lobby In America Is Now Backing A Carbon Tax

    Published 05 March 2021 | viewed 10,850 times

    The American Petroleum Institute (API) now advocates a carbon tax? We had to read the API’s press release twice to make sure we were reading…

  • Who’s To Blame For The Expensive Energy Bills In Texas?

    Published 27 February 2021 | viewed 16,959 times

    For the almost two decades of its existence as an independent system operator, only electricity wonks, neo-liberal economists and systems engineers talked about ERCOT (the…

  • The $7 Trillion Cost Of Upgrading The U.S. Power Grid

    Published 25 February 2021 | viewed 12,725 times

    We have just witnessed the damage caused by poorly designed energy grids—rolling blackouts, skyrocketing electricity prices, people sleeping in their cars and in one insulated…

  • Who’s To Blame For The Texas Power Crisis?

    Published 18 February 2021 | viewed 12,265 times

    Our last report focused on the uniqueness of the Texas wholesale electricity market, ERCOT, and how it was specifically designed to evade federal utility regulation.…

  • What The Media Isn’t Telling You About Texas Blackouts

    Published 16 February 2021 | viewed 47,840 times

    Unprecedented winter storms hit Texas. The electricity grid cannot deal with excess of demand over supply. Prices soar. Rolling blackouts. Expect more says the grid…

  • How Bad Was Big Oil’s Earnings Season?

    Published 11 February 2021 | viewed 4,815 times

    The five integrated oil super majors closed their financial books for 2020 and their numbers looked dreadful. However it could have been worse. Their revenues…

  • Electricity Market Set For A Major Rebound

    Published 30 January 2021 | viewed 4,162 times

    It’s hard to believe, but electricity stocks used to be revered by investors the way FANGMAN stocks are today. To be more precise, they were…

  • Why Decarbonization Could Make Strategic Sense For Oil Majors

    Published 23 January 2021 | viewed 5,388 times

    Can oil companies profitably transform themselves into low carbon, green enterprises? That is a big question for investors. We have already noted that green investments…

  • Why Oil Companies Can’t Replace Oil Profits With Renewable Profits

    Published 19 January 2021 | viewed 12,847 times

    Last week we argued in Oilprice.com (“Can Renewables Become As Profitable As Oil and Gas?”, January 5, 2021) that oil companies could not maintain their…

  • Brexit Creates Major Problem For UK Energy Companies

    Published 07 January 2021 | viewed 5,246 times

    In the international electricity markets, countries fall into one of three categories: those that provide adequately for their needs like the US, those with excess…

  • Can Renewables Become As Profitable As Oil And Gas?

    Published 05 January 2021 | viewed 12,033 times

    Here’s the question for oil industry investors. Can oil companies scale up clean energy enterprises to replace business lost from a decline in fossil fuel…

  • Upheaval In Big Oil’s Board Rooms

    Published 14 December 2020 | viewed 6,929 times

    A bevy of Royal Dutch Shell’s top clean energy executives picked up and resigned from the energy giant. They quit shortly before Shell was scheduled…

  • Decarbonizing U.S. Utilities: The Money Talks

    Published 03 December 2020 | viewed 2,089 times

    If policy makers in Washington wanted to hasten the demise of coal fired electric generating stations, they could not have done a better job. What…

  • How Fast Will The Electric Industry Exit Coal?

    Published 17 November 2020 | viewed 10,742 times

    What do Siemens, General Electric and Toshiba have in common— other than the obvious: they are global manufacturers of electrical equipment? The answer is that…

  • Why U.S. Politics Don’t Impact Energy

    Published 07 November 2020 | viewed 8,255 times

    Let’s assume a likely so called political gridlock scenario in Washington DC with a Biden Presidency and Republican control of the Senate. Conventional Wall Street…

  • Oil Poised To Rebound, But What About The Long Term?

    Published 20 October 2020 | viewed 11,335 times

    Oil bulls predict demand for oil will snap back quickly as global economic conditions improve. The International Energy Agency (IEA), on the other hand, expects…

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