Debunking The Unscientific Fantasy Of 100% Renewables

Mark Jacobson of Stanford said America could easily become 100% renewable by mid-century. Jacobson published a paper in 2015 that claimed we could get rid of all other energy sources except wind and solar, and a tiny bit of other renewables, by 2050, and that it would be easier and cheaper than any other alternative mix. Jacobson’s paper has become the bible of alternative energy. It has also spawned a horde of state and federal policies.

There is one big problem: Jacobson’s claim is at complete odds with serious analyses and assessments. It seems that the paper has major errors pointed out by the scientific community. It seems that the mandated goals can’t be achieved with available technologies at reasonable prices


  1. Tomi Engdahl says:

    Energy generation: using various power sources

    Despite (or as a result of) the economic downturn, the use of renewable energy options have grown over the past several years, supported by federal and state programs including federal tax credits, state renewable portfolio standards, and a federal renewable fuels standard.

    Learning objectives:

    Discuss the renewable energy options available to engineers when designing power systems.
    Review various alternative power sources, such as combined heat and power (CHP).
    Learn about resilient power options.

    Failure of power generation systems serving hospitals, airports and transportation systems, water- and waste-treatment plants, police stations, and public safety food distribution could result in supply shortages, considerable disturbance to public order, and a significant economic impact both regionally and nationally. The need for reliable power at every building is essential, but in recent years, several blackouts in the U.S. have highlighted the need for resilient power systems at critical facilities.

    Defining dispatchable and non-dispatchable technologies

    Owners of critical infrastructures need to reconsider their power and backup power systems to be more resilient with the constant updates in technology. Rather than relying on more diesel generators or stand-alone nondispatchable options, which in most cases are very expensive, integrating nondispatchable designs with dispatchable systems is a good practice. Part of this is understanding the definitions of both dispatchable and nondispatchable technologies. A dispatchable source of electricity is an electrical power system, such as a power plant, that can be turned on or off and can adjust its power-output supply based on demand. Most conventional power sources, such as coal or natural gas power plants, are dispatchable systems. In contrast, many renewable energy sources are nondispatchable. Renewable sources, such as wind and solar power, generate electricity based on variable sources, which affects the flow of output energy.


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