Stimulus Spotlight: Oregon’s Solar Highway

3078005880_7eeb96b270.jpgThe first of Oregon’s "solar highway" installations, which are receiving $2 million from the federal stimulus. (Photo: ODOT via Flickr)

Washington’s normally frenetic pace slows down in August, when humid
weather and the absence of Congress combine to give the capital some
recharging time.

But this month also marks a half-year since the economic stimulus became law, giving Streetsblog Capitol Hill an opening
to examine some of the innovative — and potentially controversial —
transportation projects getting funded by the Obama administration’s
$787 billion recovery effort.

Our first stop is Oregon, a hotbed for environmentally friendly transport policy where the ODOT uses about 47 million kilowatt-hours (kWH) of electricity each year to run lights, signals, and other illuminated features. To start offsetting its power needs with clean energy, the agency has built the nation’s first "solar highway" system, installing linear arrays of photovoltaic panels along roadside land.

"Our long-term goal is to offset 100 percent of our energy use with renewable resources," Allison Hamilton, project director at ODOT’s office of innovative partnerships, said in an interview.

Hamilton’s office estimates that filling that power need would require about 120 miles of roadside arrays, or less than 1 percent of state-owned land. The first "solar highway" project, in the Portland suburb of Tualatin, can be monitored on the Web and is expected to generate about 128,000 kWH a year.

That may not seem like much, given that the nation’s largest solar array, at Nellis Air Force Base in Nevada, generates 30 million kWH annually. But ODOT is gearing up for a major expansion of its "solar highways," with a planned 3-megawatt installation — more than 25 times the size of the Tualatin site — slated to receive $2 million from the Obama administration’s economic stimulus law.

The stimulus money for the "solar highway," however, comes from the Department of Energy’s (DoE) pot, not the U.S. DOT’s. Despite the project’s use for transportation purposes, it cannot be considered a transport initiative.

"Both the DoE and DOT like the whole idea of the solar highway," Hamilton explained, "but the strings attached are making it difficult."

The 3-megawatt array, to be located in the town of West Linn, also has run into difficulties from some locals who question the environmental
consequences of the panel installation as well as the
effect on their property values.

Tax Fairness Oregon, a fiscal watchdog group, has urged ODOT to ensure that ultimate ownership of the solar panels shifts to the public, rather than the private developers who provide initial funding.

2964183317_c8d7cf9797.jpgWorkers installing a fence around the first "solar highway." (Photo: ODOT via Flickr)

Both ODOT and Portland General Electric (PGE), the utility company that partnered with the state on the first "solar highway," said that the financing model used for that Tualatin array was crucial to ensuring its cost-effectiveness.

The utility’s share of the costs "actually brings our contributions at or below our market prices," allowing the solar power to cost as much as conventional, carbon-burning electricity, PGE distributed resources manager Mark Osborn said in an interview.

Although the "solar highway" was ineligible for U.S. DOT stimulus money, the project counts several influential fans on Capitol Hill.

Rep. Earl Blumenauer (D-OR), an outspoken advocate for green transport, leapt to its defense when Sen. John McCain (R-AZ) named the solar array one of his "top 10 porkiest" provisions in the stimulus. Oregon’s two senators, Ron Wyden (D) and Jeff Merkley (D), added a $1 million earmark for the project to next year’s DoE spending bill.

And during his Senate confirmation hearing, Federal Highway Administrator Victor Mendez said the project is we said the project epitomizes what "we need to be pursuing in transportation, to do exactly what may become a standard practice 20 years from now."

Exporting ODOT’s idea to other states would require utilities that offer net metering, which allows the agency to feed the electric grid during the day and withdraw an equivalent amount of power at night. Net metering is now available in all but six states, according to the DoE, and could be expanded by Congress in its upcoming energy bill.

"The land that’s
alongside highways, in so many cases, can’t be used for anything else — it’s access-limited or being held for future highway expansion," Hamilton said.

If ODOT’s efforts continue to take off, she added, locations that have energy-generation potential "would all have solar panels on them."

6 thoughts on Stimulus Spotlight: Oregon’s Solar Highway

  1. It’s about time.
    While I am all for solar highways, a million solar roofs is not a bad idea, either. If you generate electricity where you need it, you need less infrastructure to move it around. I’d like to see utilities “rent,” in some way, space on roofs with good solar and easy maintenance access, commercial and residential, on which to install both photovoltaic and solar DHW systems. Perhaps the rent could be paid in the homeowners’ eventual ownership of the system? Or in reduced utility costs, a “share” in ownership?
    While we’re at it, I’d like to see some incentive program beyond tax credits for adding passive solar heat to a home (or business). And if Vera Katz administration had the gall to make new “snout houses”–garage out front–illegal in Portland largely due to aesthetics, perhaps Portland’s current administration could find the chutzpa to require that all new homes with good solar access take advantage of passive solar principles. Just moving most of the windows, and all of the big ones, to the south side of the house, and calculating the overhang to let the sun in in winter but keep it out in summer, will save ~ 20 percent of the home’s heating costs. Build the sort of tight, well-insulated energy-efficient house Portland is trying to encourage anyway, put as much glass as you can on the south side, add three times its surface area in masonry four inches thick behind the glass to absorb the light, and you might get 60 percent of that home’s heat from the sun. Add something like an efficient, low-pollution masonry wood stove and that home may never use one watt of fossil fuel energy for heating. And every home we build that doesn’t use the sun to help keep itself warm is a wasted opportunity and more carbon in the atmosphere for its entire life.
    Anybody know? Was it Aristotle who in essence said, 2500 years ago (?), that only barbarians don’t know to build their homes to take advantage of the sun? Isn’t it time we listened to him?

  2. John, I like the idea of a low pollution masonry wood stove. I love wood stove heat in the winter, nothing warms you to the very core like a wood stove. I also like your idea of a million solar roofs. “Renting” space on roofs? Hmmm. Great minds think alike. What would you think about renting a residential solar system instead of renting the roof? [url=]This company[/url] has a goal of having 25% of residential electricity being generated from the sun by the year 2025 using that exact concept.

  3. Hi John,
    We have a lot in common in terms of ideas. Somehow by clicking somewhere I found out you’re in Portland and are a carpenter, attending community college. We’re out on the Oregon coast, near Nehalem and always interested in others who are advancing the idea of distributed energy production. Go to to see some of Anthony’s work and my writing about those topics.

  4. Fantastic idea in general. If we could use existing structures (buildings, roadways, etc) to go solar, it would go a long way toward solving our energy problems. A program to rent roofspace for solar energy would be awesome.

    But why in the world does a single intersection need 400,000 kWh of energy for lighting? Part of solving the energy crisis is going to be downsizing our energy needs. Do we really need that many lights at one single intersection? Could we not come up with any way of conserving energy at this intersection to minimize the total energy it needs in the first place?

Leave a Reply

Your email address will not be published. Required fields are marked *


Today’s Headlines

Mark your calendar, ’cause the Senate climate bill hearings start on Oct. 27 (Politico) Some states are declining to post road signs that note when projects are being funded by federal stimulus money (NYT) Breaking down the Kerry-Graham op-ed on climate cooperation — is it really a "game-changer" or just a sign of unnecessary compromises […]

Tell Congress: Don’t Waste Money on Highway Expansion

States should know better than to funnel more money into road expansion at the expense of maintenance. With President-elect Obama back in Washington, action is heating up again around the economic recovery package, which could total up to $850 billion over the next two years. As much as $100 billion may be at stake for […]

Barbour Breaks With AASHTO Chief on Stimulus’ Transportation Benefits

Viewers of yesterday’s Fox News Sunday were treated to an interesting sight: Mississippi Gov. Haley Barbour (R), whose name is increasingly in the mix for his party’s 2012 presidential nomination, distancing himself from the president of the American Association of State Highway and Transportation Officials (AASHTO), Washington’s voice for state DOTs. Butch Brown, Mississippi’s DOT […]