At Reason, Ronald Bailey looks at how much it would cost to implement Alexandria Ocasio-Cortez’s post-fossil-fuel plans:
There’s a lot to consider in this resolution, but let’s for the time being focus on the goal of “meeting 100 percent of the power demand in the United States through clean, renewable, and zero-emission energy sources” by 2030. The resolution is light on fiscal details, so let’s consider the question of how achieving this goal would cost.
As it happens, a team of Stanford engineers led by Mark Jacobson outlined just such a plan back in 2015. Jacobson’s repowering plan would involve installing 335,000 onshore wind turbines; 154,000 offshore wind turbines; 75 million residential photovoltaic systems; 2.75 million commercial photovoltaic systems; 46,000 utility-scale photovoltaic facilities; 3,600 concentrated solar power facilities with onsite heat storage; and an extensive array of underground thermal storage facilities.
Assuming steep declines in the costs of each form of renewable electric power generation, just running the electrical grid using only renewable power would still cost roughly $7 trillion by 2030. The Information Technology and Innovation Foundation calculated that the total cost of an earlier version of Jacobson’s scheme would amount to $13 trillion. And based on how fast it has taken to install energy generation infrastructure in the past, Jacobson’s repowering plan would require a sustained installation rate that is more than 14 times the U.S. average over the last 55 years and more than six times the peak rate.
The cost — $7 trillion — would be spent to save … how much?
..global warming at or above 2 degrees Celsius beyond preindustrialized levels will cause— (A) mass migration from the regions most affected by climate change; (B) more than $500,000,000,000 in lost annual economic output in the United States by the year 2100;
$500 billion a year isn’t a lot in the context of the US economy. It’s currently around $20 trillion in size, so we’re talking about 2.5% of the economy being lost. But of course we’re also predicting that the economy will grow between now and then. Actually, we think the US economy will be about $100 trillion a year by 2100. So we’re talking about 0.5% of that economy. Or about the change in size of the US economy between September and December last year. Think how much richer we did feel over those few months. And how much poorer we’d be if it hadn’t happened, that growth.
Oh, and to avoid that loss AOC is suggesting that we spend $7 trillion now? That just doesn’t pass the cost benefit test. It doesn’t even pass at the Stern Review’s special discount rate.
Which is, of course, what all the economists have been trying to tell us all about dealing with climate change. Don’t do it by central planning, do it by using market incentives. Have a carbon tax. Don’t try and do it too quickly – William Nordhaus gained his Nobel in part for saying this – but do it more gradually over time. Don’t junk what we’ve got that already works, instead when the normal time comes to replace it then make sure it’s non-carbon emitting. Finally, don’t do it the expensive way, do it the cheap way. For the cheaper we make it to solve it then the more of the problem we’ll solve. You know, humans usually doing less of the expensive things and more of the cheap?
The most bizarre passage in the Green New Deal is the admission that after they've junked every car in America, replaced every power plant, and renovated every single building within the space of a decade, they might not get around to slaughtering all the cows by their deadline.
— Megan McArdle (@asymmetricinfo) February 7, 2019
