Archived post

This is an archived post. Please click here to see the latest entries.

« Smart Communications for a Change | Home | How Oh So Distinctly Dartmouth »

Power Plant Economics


This space has commented ad infinitum on the fiscal disaster that is the College (in terms of fundraising, staffing, and construction). Has the same evident mismanagement spilled over into the College’s energy plan as well.

In a bid to become more environmentally friendly, Dartmouth plans to transition its power plant from dirty No. 6 fuel oil to biomass (likely wood pellets or chips). Moving to a cleaner source of energy is certainly commendable, but what of the expense? A Valley News article suggests that the cost of the conversion and other eco-friendly improvements may reach an eye-watering $100 million. And given the administration’s propensity for cost overruns, the actual tab may be even higher.

Fortunately, we can use the basic economic tool of cost-benefit analysis to examine the worthiness of this project. For this purpose, a back of the envelope calculation will suffice in showing whether the proposed plan is anywhere in the realm of making sense.

The College uses approximately 3.5 million gallons of No. 6 fuel oil each year. According to the EPA, No. 6 fuel oil has a carbon dioxide content of 11.27 kg/gallon, resulting in total carbon emissions of 39.5 million kg or 39,445 metric tons of carbon per year. Using similar calculations, we can find that the plant also emits 1,575 metric tons of methane and 315 metric tons of nitrous oxide every year.

The next step is to find the dollar value of these emissions in terms of the harm that they do to the environment (what economists call the social cost). The EPA pegs the social cost of a metric ton of carbon dioxide at $42, methane at $1,200, and nitrous oxide at $15,000 for the year 2020. Thus, the total social cost for a year of power plant operation is $8.27 million, with a breakdown of $1.66 million from carbon dioxide, $1.89 million from methane, $4.72 million from nitrous oxide. Or, put in other terms, the social benefit of eliminating these pollutants equals that dollar amount.

Given that $100 million annualized is equal to $5 million (or 5%) in endowment draw per year, the proposed plan would seem to pass cost-benefit analysis and actually be worthwhile. However, the price of carbon dioxide per metric ton in the European Union is currently €6.95, or $8.30. In other words, there are a plethora of emitters in the EU who can abate their emissions far more cheaply than the College can.

Theoretically, Dartmouth should be able to achieve the same positive impact on the environment at a lower cost by vacuuming up EU permits equal to the power plant’s carbon footprint and then simply refusing to exercise or sell said permits. This would have the effect of bidding up the price of carbon in the EU and forcing polluters offline, thereby offsetting the College’s carbon footprint.

The aggregate greenhouse gas emissions from the College’s power plant can be converted to 196,500 metric tons of carbon dioxide equivalent. That much in EU permits costs only $1.63 million per year — saving Dartmouth $3.37 million each year going forward — with the same positive environmental impact. In other words, if the goal is to do well by the environment, the College can achieve the same environmental impact for a much lower cost. Or it could spend the entire $5 million on permits and achieve a much greater impact. Either way, building a new power plant doesn’t seem like the most efficient use of capital in the short run.

Addendum: An expert in the field writes in:

This is a nice analysis. Indeed, it might even be too conservative.

Buying and not using an EU carbon permit probably gets you reductions in other greenhouse gases for free. If, for example, marginal carbon emissions in the EU are from an oil burning power plant, then the emission reductions of other gases would be roughly in proportion with our own emissions. If that were true, Dartmouth would only need to buy permits to offset its carbon, i.e. 39.5 million tons rather than 196.5 million tons.

In that case, buying permits would be 15.3 times cheaper than the $100 million project, rather than the 3.1 times cheaper calculated by the author.

Either way, he is making a great point. The whole point of tradeable permits is that they allow abatement to come from those with lower costs. It sounds like we have very high costs of abatement, so, if we want to be carbon-neutral, we should lead by example and do it the correct way.


Featured posts

  • August 14, 2013
    Breaking: Of Crips and Bloods and Memories of Ghetto Parties
    History repeats itself, first as tragedy and then as farce, or sometimes it just repeats itself. From the New York Times on November 30, 1998: At Dartmouth College, white students at a ”ghetto party” dressed…
  • June 25, 2013
    Dean of the College Charlotte Johnson’s War on Students Part (2/2)
    Part 1, Part 2 Today’s post again recounts the events that befell the Freshman. However, the content of the Hanover Police department report reproduced in this space yesterday is supplemented by information from my own…
  • October 18, 2009
    When Love Beckoned in 52nd Street
    We were at San Francisco’s BIX last evening, enjoying prosecco, cheese, and a bit of music. A full year of inhabitation in Northern California has unraveled to me no decent venue for proper lounging, but…
  • October 9, 2009
    D Afraid of a Little Competish
    So our colleague and Dartblog writer Joe Asch informed me that the D has rejected our cunning advertising campaign. Uh-oh. The Dartmouth is widely known as a breeding ground for instant New York Times successes,…
  • September 4, 2009
    How Regents Should Reign
    As Dartmouth alumni proceed through the legal hoops necessary to defuse a Board-packing plan—which put in unhappy desuetude an historic 1891 Agreement between alumni and the College guaranteeing a half-democratically-elected Board of Trustees—it strikes one…
  • August 29, 2009
    Election Reform Study Committee
    If you are an alum of the College on the Hill, you may have received a number of e-mails of late beseeching your input for a new arm of the College’s Alumni Control Apparatus called…

Dartblog Specials

Subscribe by Email

Enter your email address:

Help, Pecuniarily

Please note

This website reflects the personal opinions of its authors. Any e-mails received may be published along with the full name of the sender. If you wish otherwise, please say so.

All content appearing at should be presumed copyright 2004-2018 its respective bylined author unless otherwise noted or unless linked to original source.




April 2018
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30