The Triangle Clean Cities Coalition was founded in 1999 and designated by the U.S. Department of Energy in 2001, joining an elite group of 100 member Clean Cities Coalitions. The Clean Cities program nationally has saved nearly 8 billion gallons of petroleum since its inception in 1993.
Triangle Clean Cities has worked both independently and alongside other coalitions throughout North Carolina and the U.S. to further our initiatives. Our staff assists Coalition members to reach their goals by providing grant assistance, technical assistance, and networking opportunities to advance affordable, domestic transportation fuels, energy-efficient mobility systems, and other fuel-saving technologies and practices.
Triangle Clean Cities is a program within Central Pines Regional Council (CPRC). CPRC serves a diverse seven-county region, promoting collaboration among local governments, stakeholders, and partners, tackling challenges that cross jurisdictional lines.
Watch this space for information on upcoming events!
Sustainable Fleet Technology Conference & Expo 2026 | August 25-27, 2026 | Durham Convention Center, Durham, NC
The Sustainable Fleet Technology Conference & Expo brings together leading fleets and technology providers to showcase the latest and greatest transportation technologies, fuels and trends. The conference includes a strong focus on data driven decisions and tools. The expo and conference sessions are a source of on-the-ground experiences for increasing fleet efficiency and resiliency, while reducing emissions and costs. Join us to learn from your peers and experts! More Information and Registration
Planning, Deployment & Lessons Learned for Medium and Heavy Duty EVs
Purchasing and Policy Considerations of EVs Organizations, Fleets and Municipalities
Electric Transit and School Bus Initiatives in the Southeast
Autonomous Vehicles Considerations for Connected Communities
Ride and Drives
Women and the EV Experience
A Look at the EV Market in 2020
Off-Grid: Using Residential Solar and Storage to Charge Your Electric Vehicle
eTRU Charging Station Site Tour
Triangle Clean Cities is proud to be the lead of the TEST Program—Team-based Evaluation, Surveying, and Training for Real-World Charging—a groundbreaking initiative aimed at improving the reliability, accessibility, and effectiveness of electric vehicle (EV) charging infrastructure across the United States.
This multi-year effort is a joint collaboration between Triangle Clean Cities, the National Energy Technology Laboratory, Idaho National Laboratory, the Joint Office of Energy and Transportation, and East Tennessee Clean Fuels, along with 26 Clean Cities and Communities coalitions spanning 23+ states.
Project Goals & Impact
The TEST Program is designed to address critical aspects of EV charging deployment, including:
Project Timeline
The TEST Program will take place over three years with specific phases designed to develop standards, train personnel, and create long-term impact:
Phase 1
Phase 2
Phase 3
By the conclusion of the TEST Program, the project will have established a replicable model for evaluating and improving EV charging infrastructure nationwide, ultimately supporting the transition to an energy independent and reliable transportation future.
The Southeast Region Alternative Fuel Corridor interactive map shows locations of refill and charge stations for various alternative fuel types in the Southeast. These alternative fuels include liquefied petroleum gas (LPG), liquefied natural gas (LNG), compressed natural gas (CNG), and electric (EV). Using corridor-ready criteria established by the Federal Highway Administration, drive-distance zones were created to identify gaps in station infrastructure along interstate corridors. These buffer drive-distance zones were calculated only for stations within 5 miles of an exit along interstate corridors in the Southeast region. New stations can therefore be considered for installation in areas of the corridor network not overlapped the drive-distance zones.
History of Alternative Fuel Corridors
With the designation of alternative fuel corridors, the U.S. Department of Transportation is establishing a national network of alternative fueling and charging infrastructure along major highways. This includes plug in electric vehicle charging, hydrogen fueling, propane (LPG) fueling, and natural gas (CNG, LNG) fueling.
These corridors allow for inter- city, regional, and national travel using clean burning fuel while also addressing range anxiety. An integrative approach was used to ease these corridors into existing transportation planning process.
Drivers are notified of accessible fueling stations with proper signage along the highway. Among the first to install proper signage were South Carolina along I-26, and Minnesota along I-94.
Our Maps
Click on each fuel name to go to its designated page for a larger view of the maps.
DRIVE Electric USA developed 14 state-based “Drive Electric” programs that engaged individuals, utilities, legislators, dealerships and others towards removing adoption barriers and accelerating plug-in electric vehicle use in our states.
Project leaders and implementers educated consumers, utilities, utility regulators, and government officials while engaging auto dealers and fleet leaders, conducting EV infrastructure planning, and developing local EV chapters. All of this occurred under the banner of each branded, statewide EV initiative which was guided by that state’s stakeholders.
The project ran from October 2020 through December 2023 and was comprised of a group of diverse stakeholders, including Clean Cities Coalitions from fourteen states, electric vehicle and EVSE OEMs, and other committed partners who are dedicated to raising awareness and adoption of EVs across the United States.
Priorities
TCC's Involvement
Triangle Clean Cities served as the project lead for the state of North Carolina and worked closely with project partners to implement DRIVE Electric USA programs. In coordination with Plug-in NC, North Carolina’s statewide EV advocacy organization, the project team worked to educate consumers, policymakers, regulators, auto dealerships, and fleet managers about the benefits of electric drive technology.
Project Overview:
Triangle Clean Cities, in partnership with the City of Durham, is working to increase awareness and accessibility of electric mobility solutions through the Clean Energy to Communities (C2C) program. This initiative, funded by the U.S. Department of Energy and managed by the National Renewable Energy Laboratory (NREL), supports community-driven clean energy goals by providing expert guidance, tools, and data-driven analysis. Our goal is to create a community hub at city events to educate and engage residents on electric vehicle (EV) financing, charging infrastructure, and workforce development opportunities in the region.
Project Objectives:
Community-Driven Approach:
In Fall 2023, the City of Durham and Triangle Clean Cities conducted outreach to gather input on e-mobility needs. One key finding was that underserved communities showed limited interest in EVs due to high perceived costs and lack of exposure. To address this, Durham will integrate EV displays and test-drive events at city gatherings, ensuring accessible information and engagement opportunities for all residents.
Key Activities:
Regional Collaboration & Knowledge Sharing:
This initiative will foster partnerships across the Research Triangle (Durham, Raleigh, and Chapel Hill) to facilitate knowledge exchange on best practices for EV adoption and infrastructure deployment. Insights gathered will help shape future transportation electrification strategies and funding allocations.
Final Deliverable:
Triangle Clean Cities and the City of Durham hosted two "Ride and Drive" events to provide hands-on experiences with electric vehicles and gather community feedback. These events were held at the City of Durham Earth Day Festival in April 2025 and Durham's Bimbé Block Party in May 2025.
These events featured EV test drives, educational sessions, and opportunities to connect with industry stakeholders. Feedback collected through surveys informed the city's electrification planning and future deployments of EV infrastructure. A final report summarized event outcomes, survey findings, and actionable recommendations.
The Basics
Biodiesel is a renewable, biodegradable fuel produced from organic feed sources such as soybeans, cooking oil, and animal fats. Biodiesel can be used in its pure or “neat” form (B100) or blended at any ratio with petroleum diesel to achieve cost efficiency and improve cold weather performance. Typically blends with smaller percentages of biodiesel perform better in colder temperatures. The most common form of biodiesel is B20 – a blend of 20% biodiesel and 80% petroleum diesel.
Biodiesel can be used in any diesel vehicle without modification. It is used extensively in parts of Europe and is gaining support in the United States. Applications include buses, delivery trucks, waste disposal and recycling trucks, construction and farm equipment, heavy-duty freight hauling, boats and passenger vehicles.
Advantages
Considerations
Biodiesel contains less energy on a volumetric basis than petroleum diesel. The higher the biodiesel content the lower the energy content per gallon. In colder weather biodiesel can crystalize, but a cold flow improver can be added to a blend to prevent this.
Local Partners
Southeast Diesel Collaborative - The Southeastern Team Reducing the Impacts of Diesel Emissions (STRIDE) Collaborative is part of EPA’s National Clean Diesel Campaign, a program combining regulatory measures with voluntary initiatives to reduce the pollution emitted from diesel engines across the country. It includes leaders from industry, academia, and government at all levels from Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, and Tennessee. The collaborative was formed in April of 2006 and was originally called the Southeast Diesel Collaborative (SEDC).
Tools & Links
The Basics
An electric vehicle (EV) is any car, truck, bus, or van that is partially or fully propelled by an electric motor that receives power from on-board batteries rather than using conventional fuels like gasoline and diesel. Electricity is stored in the battery, which must be recharged periodically through plugging the vehicle into outside power sources. This can include electricity from the utility grid, or stationary renewable resources like solar cells.
Manufacturers currently offer numerous EVs, including electric cars, light trucks, service vans, and buses. While availability is limited to specific geographic areas, the Electric Vehicle Association of America estimates that over 4,800 electric cars and light trucks have been delivered to consumers over the last four years. Technology initially developed for electric vehicles is now used in gasoline powered hybrid vehicles that use electric motor assisted propulsion and regenerative braking.
Types of Electric Vehicles (EVs)
There are three different models of electric vehicles: Hybrid (HEVs), Plug-in Hybrid (PHEVs), and All Electric (EVs):
Neighborhood Electric Vehicles (NEV’s) are used for short distances like that of everyday commutes, light hauling, delivery, and have limited speeds of around 35 mph.
EV Stations in the Southeast Alternative Fuel Corridor
Click here for an interactive map detailing locations of EV stations (black points) in the southeast with a 25-mile buffer (seen in blue). Toggle on/off different layers in the legend for more specificity. Click the double arrow in the left-top corner for more details.
Advantages
Considerations
While there is zero tailpipe emissions, there is inherent pollution associated with upstream construction of the vehicle. This indicates that the vehicle is not completely net zero. Electric vehicles also tend to have a smaller mileage range and can take longer to charge/ fill up than conventional vehicles. Electric vehicles also tend to have higher purchasing prices, but with the implementation of federal and state incentives, cheaper fuel costs, and lower maintenance costs this can be offset.
Local Partners
Plug In NC - Plug-in NC has been working since 2011 to establish North Carolina as a leader in electric transportation. We are a statewide program that promotes electric driving through education and outreach, consulting and resource development. We also strive to provide a collaborative opportunity for stakeholders to work together to ensure a seamless integration of electric vehicles into our local communities.
Tools & Links
The Basics
Ethanol is a renewable naturally oxygenated fuel produced by fermenting organic materials known as “biomass” like that of corn, grains, crop waste materials, and forestry waste materials. Biomass is grown, collected, and transported to a facility where it is converted to ethanol. Then the fuel is transported to a fuel terminal where it is blended with gasoline and distributed to fueling stations. It is a colorless liquid and is usually blended with gasoline at different levels to create E10, E15, and E85. In the US more than 98 percent of gasoline contains some ethanol.
Types of Ethanol
E10 is a premium high-octane gasoline for cars and E85 (85% ethanol 15% gasoline) is used as an alternative fuel for light-duty vehicles. E10 can be used in any gasoline vehicle without modification. E85, however, offers a higher octane rating and must be used in specified vehicles. All major domestic automakers offer E85 compatible vehicles, or flexfuel vehicles (FFVs), at prices comparable to gasoline vehicles. Applications for E85 include non-diesel fleet vehicles, buses, light-duty vehicles and delivery trucks.
Advantages
Considerations
High percentages of ethanol lead to lower energy content than gas which lowers the vehicle’s fuel economy. If engines were to be optimized for the level of ethanol desired then the fuel economy would increase, but unfortunately engines are optimized to a different level currently.
Tools & Links
The Basics
Hydrogen (H2) is an alternative fuel that can be produced from domestic resources. Although in its market infancy as a transportation fuel, government and industry are working towards clean, economical, and safe hydrogen production and distribution for use in fuel cell vehicles. Fuel cell vehicles are beginning to enter the consumer market in localized regions domestically and around the world. The market is also developing for buses, material handling equipment, ground support equipment, medium and heavy duty vehicles, and stationary applications.
The interest in hydrogen as an alternative transportation fuel stems from its ability to power fuel cells in zero-emission electric vehicles, its potential for domestic production, and the fuel cell’s potential for high efficiency. In fact, a fuel cell is two to three times more efficient than an internal combustion engine running on gasoline. In North Carolina the demand is currently low and this fuel is not cost effective. With advancements in technology and research this fuel will become more commonly used.
Advantages
Considerations
Hydrogens energy content by volume is low causing storage problems, especially because high pressures, low temperatures, and chemical processes are needed. To make hydrogen fuel cells competitive in the fuel market, prices will need to be reduced dramatically.
Local Partners
OneH2 - OneH2 delivers hydrogen fuel that’s ready for “immediate use” – already converted to high-pressure gaseous fuel that takes only minutes to dispense. Their system monitors your daily fuel usage through web-based telemetrics to alert them when to schedule the next fuel delivery and trailer swap-out. With OneH2, you only pay for what you use.
Tools & Links
The Basics
Natural gas is made up primarily of methane with trace amounts of other gases. It occurs naturally underground and is extracted through gas wells or in conjunction with crude oil production. For storage purposes it can be stored as compressed natural gas (CNG) or liquid natural gas (LNG).
Natural gas vehicles (NGV) are the most advanced alternative fuel technology available commercially. Both light and heavy-duty vehicles can use CNG. According to the Natural Gas Vehicle Coalition, more than 20% of new transit bus orders are for natural gas buses. Some vehicles come already equipped to run either entirely on CNG (dedicated) or on both CNG and gasoline or diesel (bi-fuel). Additionally, many vehicles can be converted to run on CNG. All U.S.-based, full-sized transit bus manufacturers offer CNG buses. Applications include transit and school buses, refuse trucks, light-duty vehicles, vans, passenger cars and taxis. LNG is not suitable for light-duty vehicles but is an ideal fuel for large (class 8) trucks, transit buses, and medium-duty fleet trucks. There are over 150,000 NGVs on the road in the U.S. fueling at 1,500 locations. Over half of these sites are commercially accessible.
The Southeast Alternative Fuel Corridor
Click on these links for interactive maps detailing locations of LNG (liquified natural gas) and CNG (compressed natural gas) stations (black points) in the southeast with a 100 mile buffer (seen in green) and 75 mile buffer (seen in orange). Toggle on/off different layers in the legend for more specificity, search locations in the top right bar, and click the double arrow in the lefthand corner for more details.
Advantages
Considerations
The driving range of NGVs are generally less than that of gasoline and diesel vehicles, however extra storage tanks or the use of LNG can help increase range for larger vehicles.
Local Partners
NGV America - NGV America represents more than 200 companies, environmental groups, and government organizations interested in the promotion and use of natural gas and biomethane as transportation fuels. Their member companies are those that produce, distribute, and market natural gas and biomethane across the country; manufacture and service natural gas vehicles, engines, and equipment; and operate fleets powered by clean-burning gaseous fuels.
Tools & Links
The Basics
Propane also known as liquefied petroleum gas or LPG is a clean burning alternative to diesel. It is non-toxic, colorless and virtually odorless produced from liquid components that are recovered during natural gas processing. Propane becomes a liquid under moderate pressure (150-200 PSI) and is stored and dispensed in its liquid state. When the pressure is released the liquid propane vaporizes into gas that is used in combustion. Propane is the third most commonly used fuel in the world behind gasoline and diesel and is the dominant alternative motor fuel in more than 38 countries. Approximately 85% of the propane used in the U.S. is produced domestically.
Propane can be used in light and heavy-duty vehicles. According to the U.S. Department of Energy, there are currently over 200,000 vehicles running on propane in the US and about 9 million in use around the world. Most propane vehicles are currently duel-fuel, large trucks and vans, though after-manufacture conversions for many vehicles are possible and original equipment manufactures are beginning to offer more factory ready models. Applications include cars, pickup trucks, forklifts, transit and school buses, delivery trucks, trolleys and vans. Propane can also be used for home and water heating, cooking and refrigerating food, clothes drying, and powering farm and industrial equipment.
LPG in the Southeast Alternative Fuel Corridor
Click here for an interactive map detailing locations of LPG stations (black points) in the southeast with a 75 mile buffer (seen in blue). Toggle on/off different layers in the legend for more specificity. Search locations in the top right bar. Click the double arrow in the left-top corner for more details.
Advantages
Considerations
Propane vehicles can cost thousands more to purchase however, the cost of fuel itself is much lower than that of gasoline so the return on investment can be faster. Propane also has a lower fuel economy than gasoline, however the costs are offset by the higher price of gasoline.
Local Partners
Alliance Autogas - Alliance AutoGas, founded in 2009 to promote autogas as the leading alternative fuel for fleet vehicles, has experienced a steady growth that continues today. Alliance AutoGas is an international network of more than 120 independent propane and autogas companies that provide a comprehensive autogas solution to medium and heavy-duty fleets. Alliance’s partners are aligned to provide propane and autogas for fleet vehicles throughout North America. This group of partners is also engaged in offering EPA certified small engines systems through our small engines division, Alliance Small Engines.
NC Propane Gas Association - The North Carolina Propane Gas Association was founded in 1957 in order to promote, protect, and encourage the growth of the LP-Gas industry in the State of North Carolina. For the past 56 years this non-profit association has been working to protect the interest of our industry, our members, and our consumers. Currently, in the United States, over 15 billion gallons of propane are sold and approximately 60 million customers utilize propane annually.
Tools & Links
Click below for opportunities from the federal government via Grants.gov with the search already done for you.
Federal Opportunities for Energy and Transportation Projects
Clean Fuels Advanced Technology (CFAT)
The North Carolina Clean Energy Technology Center seeks proposals from both public and private entities for transportation-related projects that reduce emissions in North Carolina’s non-attainment and maintenance counties for National Ambient Air Quality Standards. Eligible projects include:
Low or No Emission Program (Low-No Program)
The main purpose of the Low-No Program is to support the transition of the nation’s transit fleet to the lowest polluting and most energy efficient transit vehicles. The Low-No Program provides funding to State and local governmental authorities for the purchase or lease of zero-emission and low-emission transit buses, including acquisition, construction, and leasing of required supporting facilities.
Diesel Emission Reduction Act (DERA)
The Diesel Emission Reduction Program (DERA) grant supports projects aimed at reducing emissions from the nation’s existing fleet of older diesel engines. Under this competition, the DERA program is soliciting applications nationwide for projects that achieve significant reductions in diesel emissions and exposure, particularly from fleets operating in areas designated by the EPA Administrator as poor air quality areas. Learn more here.
Rural Energy for America Program Guaranteed Load Program (REAP) Loan
The program provides guaranteed loan financing and grant funding to agricultural producers and rural small businesses for renewable energy systems or to make energy efficiency improvements. Agricultural producers may also apply for new energy efficient equipment and new system loans for agricultural production and processing.
Qualified Electric Plug-In Electric Vehicle (PEV) Tax Credit (Federal)
A tax credit is available for the purchase of a new qualified PEV that draws propulsion using a traction battery that has at least five kilowatt-hours (kWh) of capacity, uses an external source of energy to recharge the battery, has a gross vehicle weight rating of up to 14,000 pounds, and meets specified emission standards. The minimum credit amount is $2,500, and the credit may be up to $7,500, based on each vehicle’s traction battery capacity and the gross vehicle weight rating. The credit will begin to be phased out for each manufacturer in the second quarter following the calendar quarter in which a minimum of 200,000 qualified PEVs have been sold by that manufacturer for use in the United States. This tax credit applies to vehicles acquired after December 31, 2009. Learn More.
Alternative Fuel Tax Exemption (Federal)
Alternative fuels used in a manner that the Internal Revenue Service (IRS) deems as nontaxable are exempt from federal fuel taxes. Common nontaxable uses in a motor vehicle are: on a farm for farming purposes; in certain intercity and local buses; in a school bus; for exclusive use by a non-profit educational organization; and for exclusive use by a state, political subdivision of a state, or the District of Columbia. This exemption is not available to tax exempt entities that are not liable for excise taxes on transportation fuel. Learn More.
Alternative Fuel Tax Exemption (State)
The retail sale, use, storage, and consumption of alternative fuels is exempt from the state retail sales and use tax. Learn More.
The Alternative Fuels Data Center (AFDC) features interactive tools, calculators, and mapping applications to aid in the implementation of these fuels, vehicles, and strategies. The AFDC functions as a dynamic online hub, providing information, tools, and resources for transportation decision makers seeking domestic alternatives that diversify energy sources and help businesses make wise economic choices.
Nearly 100 local coalitions serve as the foundation of Clean Cities by working in communities across the country to implement alternative fuels, fuel-saving technologies and practices, and new mobility choices. Clean Cities coalitions are comprised of businesses, fuel providers, vehicle fleets, state and local government agencies, and community organizations.
Each coalition is led by an on-the-ground Clean Cities coordinator who tailors projects and activities to capitalize on the unique opportunities within their communities. Nationwide, nearly 16,000 stakeholders participate in Clean Cities coalitions, and through their collective efforts they are transforming local and regional transportation markets.
Fleets for the Future (F4F) is coordinating a national procurement initiative designed to consolidate bulk orders of alternative fuel vehicles (AFVs) and infrastructure for public fleets across the country. Fleets interested in participating can expect reduced incremental costs on hybrids, propane, electric, and natural gas-powered vehicles, and refueling and charging infrastructure.
Types of Alternative Fuel Vehicles Available Through F4F
F4F has partnered with Sourcewell to provide public fleet managers an opportunity to purchase and lease discounted vehicles through Sourcewell’s aggregate demand structure.
The Initiative for Resiliency in Energy through Vehicles (iREV), supports state and local emergency management decision makers by providing customized tools, information, and strategies about alternative fuel vehicle technologies, infrastructure, and potential uses in emergency scenarios. In preparing for large-scale disasters, an often overlooked risk is the disruption in supply of conventional fuels. Integrating AFV’s into emergency response fleets helps mitigate this risk. Learn more with the iREV FAQ 1 pager.
The iREV Tracking Tool is a mapping application that displays where alternative fuel vehicles and on-the-ground fueling infrastructure are located in your community. The tool can help develop emergency response plans and make decisions of how to best integrate AFVs into emergency response fleets.
Create an account and use the tool or watch a webinar presenting a demo of the Tracking Tool.
To get involved, enter your contact information in the form and the iREV staff will reach out within 1-5 business days to discuss available tools and resources.
Fuels Fix is a collaborative effort of all the U.S DOE Clean Cities Coalitions. They work together to spread the word about actions to reduce oil dependence and advance in alternative fuels technology.
This resource is designed for dealers, those who want to learn more about selling Electric Vehicles to potential buyers.
1. Free Training for Dealer Teams - a training sent to your email each week on the basics of EV's, selling considerations. This resource is backed by the National Science Foundation and hosted by Recurrent.
2. Dealer and Consumer Video Trainings - a bank of videos and resources created out of California
3. Blog: Tapping into North Carolina's EV Potential - writings created by the North Carolina Sustainable Energy Association
The North Carolina Clean Energy Technology Center offers on-demand courses: The Electric Vehicle Supply Equipment (EVSE) Infrastructure Series is comprised of four 1-hour courses that cover the topics of siting, working with utilities, navigating permitting, and ADA considerations relating to EVSEs. The series is intended to provide foundational information on each topic for architects, planners, and construction professionals.