Ohio State EV Expert Stephanie Stockar on Fast Charging, Battery Costs and Grid Power: A 2025 Q&A Reviewed

Interview coverage — source and date: On July 14, 2025, The Ohio State University’s Department of Mechanical and Aerospace Engineering published a question-and-answer feature with electric-vehicle researcher Stephanie Stockar. The questions came from Ohio State alumni, and the article was written by Ross Bishoff, originally for Ohio State Alumni Magazine. This report summarizes the original questions and Stockar’s publicly available responses, with updated technical context where useful. It is not a new interview or an exclusive conversation conducted by elektrikliotomobil.org.

The original discussion covered EV purchase prices, battery reliability, highway fast charging, North American charging connectors, electricity networks and environmental impacts. Many of the questions remain relevant to readers comparing an EV with a gasoline-powered vehicle.

Who is Stephanie Stockar, and where did the interview appear?

Ohio State’s July 2025 article identifies Stephanie Stockar as an assistant professor in its Mechanical and Aerospace Engineering Department and director of the Control and Optimization for Sustainable Technology (COST) Lab. The university describes her research as involving vehicle efficiency, EV range estimation, control and optimization, and mobility systems.

The university publication included questions from alumni with different concerns, rather than a technical survey of a single vehicle. This matters when interpreting the responses: some describe established engineering principles, while others offer an expert’s expectations about future technology and adoption. The context and date should not be removed when the material is cited.

Question: Why are some electric cars still relatively expensive?

Stockar’s 2025 answer, paraphrased: Battery materials and continued research and development investment contribute to higher purchase prices, particularly as automakers build production capacity. She expected battery improvements and larger manufacturing scale to make EVs more affordable over time.

That explanation is a statement about industry cost factors, not a price forecast for any 2026 model. Purchase price depends on the vehicle’s size, battery capacity, available trims, factory production, incentives where available, distributor decisions and market conditions. A buyer should compare actual current quotes and the full cost of ownership rather than treating a prediction as a guaranteed future discount.

For a transparent operating-cost comparison, see our EV versus gasoline energy cost per mile analysis. Running costs do not, by themselves, determine whether a vehicle is financially worthwhile to purchase.

Question: Can an EV recharge as quickly as a gasoline car refuels?

What Stockar said in the 2025 Q&A: Ultra-fast chargers rated as high as 350 kW already existed, and some vehicles could charge to approximately 80% in 15–20 minutes under favorable conditions. She also said that making such performance broadly available would require improvements in battery materials, safety and charging infrastructure.

The important qualifier is some vehicles. A charger’s maximum advertised kilowatt rating does not mean every connected vehicle accepts that power or maintains it for a whole session. Temperature, charge level, the vehicle’s battery architecture and the charger all matter. The 15–20-minute figure is therefore not a general promise to every driver.

Our battery preconditioning explainer describes why thermal preparation matters, and the 350 kW charging guide explains the difference between station rating and actual delivered power.

Question: Are North American charging connectors becoming easier to use?

Asked about Ford’s move toward Tesla’s charging standard, Stockar described the broader adoption of the North American Charging Standard (NACS) as a development that could reduce plug and connector fragmentation. In the original July 2025 discussion, she also referred to plans announced by other automakers, including GM and Rivian.

Current-driver distinction: An automaker announcing NACS plans is not proof that every model year, battery version or station is already compatible. Some vehicles require a manufacturer-approved adapter; some charging networks restrict the makes and models they accept. Confirm the exact vehicle, connector, approved adapter and station support before a journey.

For a model-independent breakdown of connector families, see our NACS, CCS and other EV plug guide. The original interview discusses a direction of market change; it does not replace current charging-network eligibility rules.

Question: Can the electricity grid handle growing EV demand?

Stockar’s main points: She described collaboration among utilities, automakers, infrastructure developers and policymakers to prepare distribution and transmission systems for rising charging demand. The discussion included managed charging, demand-response programs and the prospect of returning energy from some EV batteries to the grid.

The U.S. Department of Energy’s smart charge management guidance explains that charging can be shifted toward lower-demand or lower-cost hours where supported. Bidirectional systems may also provide building backup power or grid services, but not every EV or home charger supports bidirectional operation.

The DOE’s bidirectional charging overview notes that compatible vehicles and chargers, interconnection requirements and appropriate utility agreements are needed. The practical question for an owner is not simply whether the idea exists but whether their particular car, electrical installation and utility support it.

Question: Are EVs better for the environment if electricity still comes from fossil fuels?

Stockar emphasized that EVs are more efficient at converting stored energy into vehicle motion than conventional internal-combustion cars and that power-plant emissions can be monitored at concentrated facilities. She also acknowledged that producing batteries consumes resources and materials and creates environmental impacts.

EPA’s EV myths and facts page provides independent context: EVs have no tailpipe emissions, but generating the electricity used to charge them can cause greenhouse-gas emissions. EPA says EVs typically have a lower greenhouse-gas footprint than comparable gasoline cars even when electricity emissions are considered, while actual results vary with the vehicle, production and local grid.

One should not confuse no tailpipe emissions with zero life-cycle emissions. The grid’s energy mix, battery manufacturing, vehicle size, electricity consumption and driving patterns all matter. Readers can explore regional impacts in our U.S. ZIP-code electricity emissions guide.

Question: What innovations were on the horizon?

In the 2025 discussion, Stockar identified advances in battery materials and manufacturing, wireless or inductive charging, vehicle-to-grid systems and more sophisticated driver-assistance and connected-vehicle technologies as important areas of development.

These are research directions and deployment trends, not proof that every promised feature is broadly available or safe for use without restrictions. For instance, wireless charging equipment must be compatible with the vehicle and installation. Similarly, automated driving or driver assistance capabilities require verified operational limits and should not be assumed to make an ordinary car fully autonomous.

Question: Does a researcher driving a gasoline car undermine her EV work?

The university’s 2025 Q&A ended with a personal vehicle question. Stockar said that at the time she drove a 2012 Ford Focus hatchback and that she intended her next vehicle to be electric. She also described preparing a home garage for Level 2 charging and noted the environmental costs of manufacturing any new vehicle.

This was her reported situation in July 2025; it is not a verified statement about what car she drives on November 9, 2026. Nor is a researcher’s individual ownership decision a substitute for lifecycle analysis. For consumers, the broader lesson is to distinguish purchase timing, individual requirements and energy evidence from a single anecdote.

What can a prospective EV buyer verify independently?

1. Charging speed: check the exact model-year battery and supported DC charging power, then look at the realistic 10–80% charging curve.
2. Connector access: verify NACS, CCS or other plug compatibility, approved adapters and each charging network’s conditions.
3. Running cost: use the car’s actual EPA consumption and the electricity rates available at home and on the road.
4. Environmental impacts: include the local charging electricity mix and vehicle production rather than only tailpipe emissions.
5. Backup-power claims: verify vehicle-to-home or vehicle-to-grid support, installation needs, safety requirements and utility approval.
6. Expert predictions: note publication dates and distinguish a 2025 forecast from a fact independently verified in 2026.

Where to read the original Q&A

The primary source is Ohio State University: Expert in Electric Vehicles Answers Alumni Questions (July 14, 2025), by Ross Bishoff, originally published in Ohio State Alumni Magazine. This report is a separately written summary and context guide, not a transcript. The questions above organize themes from the university feature, and the answers paraphrase the source rather than reproduce direct quotes or suggest new responses.

Additional official references: EPA: Electric Vehicle Myths, EPA: EV and Plug-In Hybrid Overview, and DOE: Managed and Bidirectional Charging.

Editorial review: November 9, 2026. All interview responses referenced above originated in Ohio State’s July 2025 alumni Q&A; elektrikliotomobil.org did not interview Stephanie Stockar. Featured image: real 18650 and 21700 lithium-ion battery cells photographed by Sevenethics in March 2025, Wikimedia Commons CC0 1.0. It does not depict Stockar or Ohio State facilities.