Posts

Kansas City International Airport is no stranger to cleaner fuels.  It began deploying compressed natural gas (CNG) buses back in 1997providing natural gas on site with its own high-speed fueling station.  This made the Aviation Department something of a pioneer in alt-fuel adoption.  The next step, though, was a big jump in fuel efficiency, and in October of 2017, KCI became the first US airport to deploy all-electric shuttle buses.  It’s currently running 7 BYD K7 battery-electric shuttles along with older CNG units. 

There’s no getting around the fact that up-front costs for electric vehicles are going to be higher than for equivalent conventional buses.  In fact, when the airport rolled out data on the comparative costs of different fuels, the contrast was stark.  A brand-new diesel shuttle buses cost about $385,000; for CNG, add an additional 14% for a sticker price of $440,000.  All-electric models come in at a fairly eye-popping $540,000, more than 40% more expensive than the price for a baseline diesel.   

But as anybody who’s bought a car knows, the sticker price isn’t the only price.  The sticker price, in fact, is only the beginning of years of recurring costs.  Kenny Williams is the Fleet Asset Manager for the Aviation Department and one of the main proponents of the EV deployment back in 2016-17 as the project began to take shape.  He broke it down as follows: 

Costs Per Mile (Including fuel and maintenance) 
  • Diesel – variable/volatile fuel prices; approximate costs $1.50/mile 
  • CNG – more stable fuel prices; approximate costs $1.00/mile, $0.45-.50 w. alt-fuel tax credit 
  • Electric – fixed fuel prices; approximate costs $0.50/mile 

Maintenance costs add up quickly for the shuttle bus duty cycle.  Oil changes for CNG units are about $170 and have to happen every other month.  Annual tune-ups add an additional $3,800 to CNG bus operating costs.  So, even with fuel at an economical $0.50/gallon thanks to the clean fuel tax credit, CNG bus maintenance per year comes in between $4,800 and $5,000 per unit.  It’s not like EV buses float on air.  Like CNG units, they need new tires, and fluid changes every 18 months add annual costs of about $165 per year.  But no internal combustion engine means no tune-ups, avoiding the lion’s share of regular maintenance overhead. 

And yet, even with maintenance savings of around $50,000 per bus over ten years, there’s still a big price gap between diesel, CNG and electric buses.  That’s where federal clean-fuel funding comes in.  Thanks to support from the US Department of Energy, KCI was eligible for reimbursements of $72,000 per bus, dropping their costs to just $2,000 more than comparable CNG shuttles.   

The same grant, “Accelerating Alternative Fuel Adoption in Mid-America” provided funding for charging infrastructure, covering about $100,000 of $225,000 in construction and equipment costs for the new systems.  KCI’s electric bus charging lot has eight pedestals installed, with space for an additional four slots if more EV units are purchased  Charging time is about three hours, and this “fueling” process hasn’t had any negative impact on operations.   

Kenny Williams talks EV bus duty cycles at the airport’s charging lot.

What has the driver response been like?  Per Kenny Williams, “For most drivers, once they drive them, they really like them.”  The only minor hitch has been how drivers operate the bus HVAC systems – since they are battery-driven, power loss from cranking up AC or heating at full throttle can take a bite out of driving range when a gentler touch would work better. And KCI is planning on investing in additional EV units.  The economic toll of the pandemic has postponed acquisition of a few of the 12 units originally planned.  However, the Aviation Department is planning on ordering three more units in addition to the seven already in service.  These new buses will be slightly different.  They’ll have inductive charging systems, which will let them power up without cords or plugs, as they pick up passengers at the new terminal starting in early 2023.   

This material is based upon work supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) Vehicle Technologies Program under Award Number DE-EE0008262 . 

At MEC, our job is to keep tabs on energy use in the central Midwest, but why should that matter? Because the ways that people and businesses use energy can affect lives. Technology has yet to come up with a solution that moves people and goods without releasing some sort of air pollution, and air pollution affects human health.  The problem is that every power source that can power a vehicle will create emissions and will have a carbon footprinteven electric vehicles.  There are, however, many alternative fuel options that arefar cleaner than gasoline and diesel.  If you’re looking for a vehicle that produces less emissions, there are a lot of factors to consider when making your decision. 

Let’s compare the different ways that the energy we use affects our health. In 2017 the emissions from vehicles on the road passed up the amount of emissions released from power stations.  That switch has shown up as health problems, such as the increase of child asthma cases for families living near highways and railroads.That’s simply because vehicle emissions get concentrated in the air around the places that people and goods get transported. Transportation emissions are now the #1 source of greenhouse gases too, making it globally important to choose our transportation wisely.  For the sake of our local and global health, we must decide to make transportation cleaner. The question now is how. 

For some, their ideal chosen solution is to walk or bike more places, and to only shop for things in stores within walking distance of their house.  But what if you need transportation?  Remember that COVID shutdowns produced sudden, startling air quality improvements the likes of which we haven’t seen in decades.  As residents of Los Angeles and New York saw with their own eyes, less vehicles on the road immediately improved their air quality, even in heavily polluted cities.  But the shutdown of society isn’t a realistic model for fighting climate change in the long run.  Movement of people and goods still must happen.  Are there cleaner solutions than what’s commonly used to move people and goods right now? The simple answer is yes.  For a more complete answer, here are options that make sense for our health, the economy and the environment. 

Electric vehicles (EVs), which plug in to an electrical supply to “fuel up, are creating a lot of buzz right now, and rightly so. All-electric vehicles have zero emissions coming out of their tailpipesso they appear to be the magic bullet for clean air around our roadways.  Plug-in hybrids are also great, in that they make use of electricity as a primary fuel, but are equipped with a fuel tank as a backup for longer trips.  EVs are great as urban or suburban family cars, transit buses, or local delivery trucks that rack up limited daily miles before returning to base to recharge.  Plus, long-range batteries, fast charging stations, and new heavy truck technologies are under rapid development, so the list of compatible uses is getting longer by the day.  

You may not realize that you can help your electrical grid become more efficient with the electricity being generated just by owning an EV and charging it at night.  The electrical grid is set up to estimate how much power is needed, and then generate slightly more than that amount to provide for our electricity needs.  Whatever electricity is generated at power plants either gets used, or it dissipates with non-use.  If you charge an EV overnight, it utilizes that energy that would otherwise be wasted. 

Biofuels are another cleaner transportation option available now.  They come from farm-produced food commodity byproductsthey emit substantially less air pollution when burnedand they’re surprisingly less expensive than the worst emission producers, gasoline and diesel.  Ethanol and biodiesel have been around for a while, and just like your cell phone, their design and our use of them has greatly improved over the last 20 years. 

In the 1990s, car manufacturers started figuring out how to protect the insides of vehicle fuel lines from the extra corrosiveness of ethanol blends, which is basically ethyl alcohol (moonshine!) mixed with gasoline.  By 2012, ethanol had busted into the mainstream, and most vehicle manufacturers now support up to 15% ethanol (E15).  To save money and get a cleaner burn in your vehicle, look for the E15 label on pumps at gas stations.  The added ethanol increases the octane, which is actually better for modern, more fuel-efficient engines.  Plus, the more ethanol mixed into gasoline, the fewer harmful, carcinogenic gases get released into the air around it All of this is why today most gasoline at the pump already has 10% ethanol in it.  You can choose higher blends if your vehicle is rated to use them.  Then it’s a matter of finding a local gas station where that blend is available to support your choice.  When you’re buying a family vehicle and want the option of using high blends of ethanol (E20-E85)ask to look at flex-fuel” options at your dealership Typically, a flex-fuel vehicle will have a yellow gas cap, indicating that you can safely use blends up to 85% ethanol, wherever you should find them. 

Biodiesel is another clean fuel option. It can be used in most diesel-fueled vehicles, and also supports the regional economy as a value-added farm product. It is a renewable fuel made from vegetable oils, primarily soybean and sometimes corn oil, but also from recycled cooking oil and waste fat. No, you can’t just pour the grease from your deep-fried turkey into your pickup. Just like petroleum, it has to be refined first, and biodiesel at the pump has excellent quality controlsMost diesel engines can use blends of biodiesel and petroleum diesel up to 20% (called “B20), which can be found at some area fuel stations. It’s also an easy drop-in fuel option for farming equipment, heavy-duty freight engines, and industrial work trucks. Fortunately for companies with large industrial fleets, fuel distributors are ready today to bring biodiesel or ethanol blends directly to industrial sites. 

Natural gas, or methane, the same fuel that cooks your food and heats your home, can be used in specialized “Near-Zero” engines that are made to burn it Natural gas is a clean burning fuel with much lower emissions than plain petroleum diesel.  It comes in two possible transportation fuel products: compressed natural gas (CNG) and liquid natural gas (LNG).  Both are available in renewable options.  More on that later. Natural gas is widely available through existing pipelines, and fuel costs are lower and more stable than diesel. It’s a great option for heavy vehicles such as freight trucks, transit buses, and refuse trucks. And, because the engines are quieter than diesel engines, that 6 am trash pickup won’t disturb your sleep.  CNG engines eliminate nearly all smog-forming pollutantshence the trade name “Near-Zero” engines While CNG is available to the general public at some area fueling stations and you can convert some cars and trucks to use CNGit usually only makes financial sense for high-mileage vehicles or fuel-hungry service providers to use it.  A number of our regional governments and service providers are already using CNG today. 

Making natural gas more climate-friendly is a priority for many people and government agencies.  The ultimate low-hanging fruit in reducing climate emissions is renewable natural gas (RNG) which involves collecting and then using methane, a greenhouse gas far more potent than carbon dioxide. Methane comes from sources other than just underground and a whopping 39% of natural gas vehicle fuel comes from renewable sources like landfill gas, which comes out of landfills whether it’s used or not.  Other sources of RNG include wastewater treatment plants, food waste and agricultural byproducts Available in both liquid and compressed forms, RNG is rapidly gaining market share because of its ecologically friendly procurement methods Done right, RNG can even have a negative carbon footprint! 

Which fuel heats your grill AND gets your kids to school?  Propane (also called autogas for transportation uses) It’s yet another cleaner burning, low-emission fuel with notably quieter operation than diesel fuel.  That makes for a much quieter ride, which drivers appreciate.  Because of that stealthy qualitypropane is a popular option for fleets of larger vehicles, especially school bus fleets.  Propane on aautogas transportation contract costs much less than diesel, so school districts can save substantially on fuel costs.  Switching to propane also means that students don’t have to breathe diesel exhaust while waiting for their busesPropane is widely available, with distribution networks already in place nationwide.  Like with CNG, you can convert some personal vehicles to run on propaneand though a bit harder to find than gasoline, it is available at some retail fuel stations. Not to be outdone by its gaseous counterpart RNG, renewable propane is an emerging product As icing on the cake, propane engine manufacturers are actively developing their own version of a “near-zero” engine, expected to be available in coming years. 

Though none of these options are ‘perfect’, they each offer substantial benefits compared to conventional fuelslower cost, longer engine life, quieter operationslower emissions, and economic benefits to the farm economy.  Though no single alternative fuel captures all these benefitsthere’s likely an option that’s almost perfect for your needs When more people, businesses and government fleets embrace alternative-fuel options, the owners/operators enjoy lower costs, softer road noise and less air pollution.  And with more investment in alternative fuels, research and development efforts continue to make every available option even better Big picture: petroleum diesel is far and away the worst culprit in making our air harder to breathe.  In order to cut down on the emissions released into the air by our transportation practices, it’s necessary for all of us to recognize and support any and all options. We can’t yet eliminate vehicle emissions, but moving in that direction ifar easier than you might think.  

For more information on alternative fuels and vehicles, check out the Alternative Fuels Data Center.

On Friday, November 10, Mid-Kansas CNG celebrated the Grand Opening of a new compressed natural gas (CNG) fueling station at 636 Thompson Street in Kingman, with a ribbon cutting by the Kingman Area Chamber of Commerce and a luncheon. Owners, Mark Molitor and Mattie Giefer, hosted the event, along with representatives from Central Kansas Clean Cities (CKCC) and KGS, which featured demonstrations of CNG refueling and a tour of the station’s compressor system. The station is open to the public 24 hours daily for refueling of CNG vehicles from autos to tractor-trailers.

Mattie Giefer was looking for a cheaper fuel option for his fleet of vehicles with GCI Construction and turned to Mark Molitor, who is in the oil & gas business, for a solution. Together they formed Mid-Kansas CNG to fulfill the need for natural gas fueling in the Kingman area. After consultation with area trucking companies, a location on the US-54/US-400 corridor was selected. The station will fill a CNG fueling gap between Wichita, 50 miles to the east, and Garden City and Liberal, both about 175 miles west. Molitor and Giefer believe that CNG is a more economical and better environmental choice for transportation. They are open to inquiries about fleet fueling on the site.

Events

A Pre-Proposal meeting to review the Request for Proposals (RFP) for Alternative Fuel Deployments in Kansas and Missouri will be held on January 19, 2021, at 10:00AM CST. During this meeting, MEC staff will conduct a walk-through of the RFP document. The meeting will be conducted online only; attendees should register for this meeting to receive join credentials or to receive a recording after the event:

 

For information on the RFP, please visit the RFP page on our website.

Learn how you can partner with KC and Central KS Clean Cities for transportation grants to upgrade fleets, use cleaner fuels and save money.

You asked. We listened. This session will provide details on how to apply for grants through MEC. Partnering with us lets you leverage funding from federal and state programs into more cost-effective operations and cleaner vehicles. We’ll discuss how to prepare a project proposal, and cover what technologies typically are – and aren’t – eligible.

This event will consist of a presentation followed by audience Q&A. We will use screen sharing to show our application forms and how to fill them out.

We’ll also touch on additional state and federal funding opportunities, and welcome your questions. Transportation stakeholders of all stripes are welcome, whether public or private, off-road or on – we hope you’ll join us on December 17th. Click here to register for this free event.