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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

  • Does Nuclear Power Have A Future?

    Published 02 May 2020 | viewed 38,058 times

    The discussion today about nuclear energy is nothing short of tribal, two warring camps shouting slogans at each other. This so-called debate reminds us of…

  • Is This The Most Innovative Power Company In The World?

    Published 26 April 2020 | viewed 25,602 times

    We came to the conclusion that the future is a separate line of business when perusing the graphically flashy 2019 annual report issued by Enel…

  • The Future Of Fuels In Power Generation

    Published 25 April 2020 | viewed 29,644 times

    Presently, one-sixth of our electric bill goes to pay for fossil fuels to generate electricity. When fuel prices were higher the percentage was even bigger.…

  • Decarbonizing U.S. Electricity For $25 A Year

    Published 23 April 2020 | viewed 12,520 times

    In our fractious domestic politics, squabbles over infrastructure spending are as old the republic. But here we propose an infrastructure project of considerable scope that…

  • This Trend Will Reshape Power Generation In The Coming Decades

    Published 13 April 2020 | viewed 39,188 times

    The decarbonization of electricity production around the world today may be seen as part of a technological shift. Everyone wants electricity or its immediate benefits…

  • Lockdown Strikes Utilities As Electricity Demand Plunges

    Published 01 April 2020 | viewed 9,687 times

    Electric utilities around the world, like other industries, are not immune to the unpleasant financial effects stemming from the covid19 pandemic. While electricity customers “shelter…

  • The Single Biggest Threat And Opportunity For U.S. Utilities

    Published 23 March 2020 | viewed 10,216 times

    This is the question that a venerable  publication catering to utilities and regulators, Public Utilities Fortnightly, asked: “When will climate change represent a tangible threat…

  • The Inevitable Capex Boom In US Energy

    Published 14 March 2020 | viewed 19,193 times

    Electric utility capital expenditures (CAPEX) in the US have been rising steadily. But they are not remotely large enough to meet future industry requirements to…

  • The Main Challenges For Electric Cars This Decade

    Published 07 March 2020 | viewed 19,285 times

    Volkswagen (VW), the world’s largest carmaker recently announced plans to spend 35 billion euros to dramatically expand electric vehicle production. VW is targeting production of…

  • Has U.S. Electricity Lost Its Spark?

    Published 04 March 2020 | viewed 13,463 times

    Well, it happened once again. Sales of electricity in the US declined in 2019 by a significant 2.8%, despite solid domestic economic growth with real…

  • The Risk Of Stranded Energy Assets

    Published 18 February 2020 | viewed 11,526 times

    The specter of stranded assets in the US electric utility industry has risen again like the undead in a typical horror movie. A leading Wall…

  • Germany Set To Close All Coal Fired Energy Plants By 2038

    Published 20 January 2020 | viewed 24,084 times

    European business news recently announced the latest German government initiative to decarbonize its nation’s electric power generation by closing all coal fired generating stations by…

  • Why BlackRock Is ‘Going Green’

    Published 18 January 2020 | viewed 24,139 times

    BlackRock, the world’s largest money manager, just announced that it would exit investments with “high sustainability” risks. Initially, we interpreted that as meaning a plan…

  • Why Is Warren Buffett Ditching His Coal Plants?

    Published 30 December 2019 | viewed 41,744 times

    Warren Buffett, probably the world’s most successful investor, a man noted for the conservatism of his investment policy and aversion to high tech, wants out…

  • The One Metric That Matters For Electric Cars

    Published 07 November 2019 | viewed 14,791 times

    Looking beyond the dramatic headlines—the cliff-hanger nature of Tesla’s financial statements and the Trump administration’s efforts to re-engineer the auto industry—we need to focus on…

  • California's Blackouts Are Part Of A Far Bigger Problem

    Published 28 October 2019 | viewed 13,034 times

    This past weekend, Pacific Gas & Electric had to resume electricity blackouts to 930,000 customers affecting upwards of three million people around San Francisco. Meanwhile,…

  • How The California Blackouts Could Have Been Avoided

    Published 16 October 2019 | viewed 6,908 times

    When an electric utility suspends service for whatever reason, the local economy grinds to a halt. Schools close. Hospitals turn on the back-up generators. When…

  • Is Bill Gates Right On Energy Investing?

    Published 05 October 2019 | viewed 53,830 times

    Not long ago, Bill Gates offered some investment advice. That, in itself, constitutes news, but the content and the reactions make up a more interesting…

  • Coal’s Last Hope: Carbon Capture Tech

    Published 24 August 2019 | viewed 25,315 times

    Coal usage continues to fall and the coal industry wants to do something about that. So does the Trump administration. Their proposed solution to the…

  • The Real Cost Of Renewables In The U.S.

    Published 23 July 2019 | viewed 15,288 times

    On July 23, if all goes well, one of California’ large municipally owned electric utilities, the Los Angeles Department of Water and Power (LADWP) will…

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