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Staff photo by Troy Stolt / An "EVGO" electric vehicle charging station is seen outside of the Chattanooga Choo Choo on Tuesday, Sept. 7, 2021 in Chattanooga, Tenn.

NASHVILLE — As the 100th anniversary of Tennessee's first gas tax approaches in 2024, state government officials here are warily looking down the road at how financing for highway and bridge construction, improvements and repairs will fare in an age when vehicles are powered increasingly by electricity.

"It's really not a big impact today, but we'd be foolish to think it's not going to be," interim state transportation Commissioner Joe Galbato told Gov. Bill Lee during the department's budget hearing earlier this month. "We know what's coming because most of the manufacturers are going to stop producing combustion engines."

It's an issue not just for Tennessee and local governments here but across the U.S.

Auto manufacturers are ramping up major investments in what they see as the future — electric vehicles — and that, along with ever-climbing mile-per-gallon improvements for fossil-fueled vehicles, is taking a toll on gas and diesel tax revenues going forward in what is seen as a yearslong decline in traditional funding.

Tennessee Transportation Budget Funding

Fiscal Year 2021/2022

State: $1.17 billion

Federal: $1.03 billion

Other: $38.48 million

Bonds: $126 million

Total: $2.372 billion

Source: Tennessee Senate, House Finance Committees

The latest evidence for the electric technology revolution was Ford Motor Co.'s recent announcement that it is building a $5.6 billion electric Ford F-Series assembly plant and battery factory complex in rural West Tennessee.

Chattanooga-based Volkswagen, meanwhile, plans to invest $800 million into a new facility to build its new ID.4 compact SUV. General Motors says it will build a $2 billion electric vehicle factory in Spring Hill to produce a Cadillac LYRIQ electric SUV. Smyrna-based Nissan, meanwhile, has for years assembled its LEAF line of cars here.

According to legislative estimates, Tennessee is projected in Fiscal Year 2022 to collect $655.2 million through its 26-cent-per gallon gas and 27-cent-per-gallon diesel tax, according to legislative estimates.

Vehicle registration fees account for another $278.9 million, while other taxes bring in $54.3 million to the state. Tally them all up and that's $988.4 million, according to the General Assembly's 2021-22 Fact Book issued by the Senate and House Finance Committees.

The state also shares an additional $324.2 million in fuel-tax revenue with local governments for their road needs, according to the analysis.

Galbato told Lee that a pre-COVID-19 pandemic analysis by the University of Tennessee estimated that by 2025 there could be a loss of $40 million in state gas and diesel taxes as Tennesseans purchase more electric cars and trucks combined with improvements in gas and diesel vehicles' mileage.

Calling it a "sizable drop," Galbato said he suspects COVID-19 would push that out by a "year or two. So by 2026/2027, there will be some real actions that are going to have to be made" to replace lost revenues, he added.

"At this point, again, electric vehicles are not causing any big revenue impact, but they will, and we've got to be prepared for that," Galbato said.

Tennessee last increased its gas and diesel taxes in 2017 when the GOP-run legislature approved then-Gov. Bill Haslam's IMPROVE Act. It raised gas and diesel taxes over a three-year period and was expected to raise an additional $350 million annually for work on 962 projects across the state over a 15-year period valued at $10.5 billion. Funded projects included a plan to fix Chattanooga's infamous "split" at the intersection of Interstates 75 and 24.

While refusing to include Republican Haslam's proposed inflation adjustment on fuel taxes, GOP lawmakers did create a new $100 registration fee for electric vehicles.

The electric-vehicle registration fee isn't bringing in much revenue yet, but it's growing. It brought in $254,000 in Fiscal Year 2018-19. In Fiscal Year 2020-21, the fee brought in $893,300, according to state Department of Revenue figures provided last week by the department to the Times Free Press.

During his department's budget hearing, Galbato said owners of about 9,100 electric vehicles were paying the fee prior to the pandemic's onset. Latest Revenue Department figures show owners of 12,454 electric vehicles are now paying the $100 fee.

Tennessee gas/diesel taxes

Gas tax: 26 cents per gallon plus additional 1.4-cent special petroleum fee

Diesel: 27 cents per gallon

Total collections in Fiscal Year 2021: $933.9 million

Major areas where money went:

— $345.9 million to cities, counties.

— $559.8 million to Tennessee Department of Transportation for resurfacing, bridges, major reconstruction, new construction, right of way purchases and matching federal funds.

— $28.2 million to state general fund.

Source: Tennessee Department of Transportation

In response to questions from Lee, Galbato said Tennesseans on average pay each year about $300 per car in gas taxes based on about 13,500 miles driven annually. About $175 of that comes from state gas tax payments, while another $125 is in gas taxes paid to the federal government.

"So if we wanted to — now I'm not proposing we do this — but somehow true them up, the dollar amount is $175 per vehicle?" Lee asked of Galbato regarding an increase in the electric vehicle fee.

Actually, Galbato said, the dollar amount per vehicle would be $300, because Tennessee gets its share of federal taxes back.

"What we sent to Washington comes back to us," Galbato said.

"So to true it up, it would not be $175, it would be $300?" Lee asked. Yes, Galbato replied.

In a sit-down interview last week with the Times Free Press, state Finance Commissioner Butch Eley emphasized the state is still "early in the process" in terms of electric vehicles on Tennessee roads.

(READ MORE: Volkswagen unveils electric SUV to be made in Chattanooga)

"Certainly, there's nothing anytime soon that we need to be concerned about. Our gas taxes are providing the revenues in conjunction with our federal revenues in order to accomplish what they're set out to accomplish," Eley said. "Having said that, we do need to continue to monitor and plan for the future. We know that when you look at the future, that we're going to see more and more electric vehicles. We see that first hand with the announcement of the Ford plant and the announcements by other manufacturers."

Speaking last week with the Times Free Press by phone, Lt. Gov. Randy McNally, the Republican Senate speaker, said "the sky's not falling down yet.

"But we do need to be prepared if we do start seeing gas tax revenues begin to slide," he said. One solution would be to look at what the average car is paying, what the disparity is between types of vehicles and then "put the increase of registration fee proportionately."

Moreover, McNally said, he understands there is technology coming to track a vehicle's mileage or use of roads and officials could be in a position to correlate that and the amount of damage to roads.

"So you can use it as, I guess, like a fee," McNally said.

Officials with the Reason Foundation and the Georgia Public Policy Foundation, both libertarian think tanks, testified before the Georgia Freight & Logistics Commission and touted the mileage tax approach given expected diminishing returns on gas taxes heading into the future amid increased electric-vehicle usage, Capitol Beat News Service reported earlier in November.

Speaking by phone Friday with the Times Free Press, Tennessee House Transportation Committee Chair Dan Howell, R-Georgetown, said he's had a number of discussions with transportation officials.

"It's just growing exponentially," Howell said of electric-vehicle registrations. "So it's becoming clear that, for one thing, the $100-a-year registration is not sufficient. It's way below the state average paid by combustion-engine drivers. We're going to have to level the playing field there because it's just the fair thing to do."

Howell said he's had discussions with House leadership as well as Senate Transportation Committee chair Becky Duncan Massey, R-Knoxville.

"It's going to end up being a solution with several components probably," Howell said. "And I know this has been a sacred cow through the years — and I've even had discussions with some members of our leadership team in the House that historically we have just refused to even look at the general fund for any subsidies for roads — but we may even have to look at some component, not make that entirely but make it part of the equation because we've been having the last seven, eight years a major [general fund] surplus."

(READ MORE: Tennessee's electric vehicle battery surge to benefit Chattanooga with Novonix planning to hire 300)

If the state is going to continue to have surpluses, Howell said he and some colleagues believe that the two "most important things" in keeping the state's economy growing are education and then sufficient infrastructure to attract industry and generate more jobs.

Future shock

In an eye-opening study released in January 2020, Dr. William Fox, director of the University of Tennessee Boyd Center for Economic Research, suggested the rise of driverless cars, fleets and the transition to electric vehicles could eventually displace one in six jobs in Tennessee, as well as pose challenges to road funding.

"The thing I've emphasized about electric and soon after, autonomous vehicles, is that there's no cliff you fall off of," the economist said last week in a telephone interview. "There's just this continuous decline, I mean, that actually makes it harder because if you really fall off a cliff, you'd actually have to deal with it."

But in a situation where things "slowly erode," Fox said, "you can always put off making decisions. And that's my fear. A lot of what I've been talking about is this is an easy one to put off — and all of a sudden, we'll realize, 'Oh shoot!' and then it'll get harder to deal with.

"I'm not a politician, I'm an economist," Fox said. "But I think the political dimension of this gets harder because those opposing change will grow."

Fox said he suspects there will be faster adoption of electric vehicles in urban areas, citing Nashville and likely Chattanooga as well.

"What that means is that the relative tax burden shifts to the rural places and away from the urban places. So it's not like everyone evenly gets impacted by this. So you get this kind of continuous drop in related tax revenues but not necessarily from rural places. So the unevenness of it it's reason for concern. It's an inequity, but it's on geography rather than income."

Contact Andy Sher at asher@timesfreepress.com or 615-255-0550. Follow him on Twitter @AndySher1.

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