ryde-ing in style

City approves funding for EV rideshare service in underserved communities in Houston

Need a RYDE? The city voted to provide funding to expand the electric vehicle initiative. Photo via Evolve Houston

The city of Houston approved $281,000 funding for the expansion of free electric vehicle rideshare services in communities that are considered underserved by utilizing services like RYDE and Evolve Houston.

The funding will be dispersed to RYDE in through the nonprofit Evolve Houston.

“It’s exciting to see a Mayor and City Council get behind a true eco-friendly initiative aimed and providing critical transportation needs for underserved communities,” Evolve Houston President and Executive Director Casey Brown says in a news release. “The program has seen amazing success in the Third Ward and now another historically underserved community will be able to benefit from a service that gets residents to and from in-town destinations for free.”

Rideshare service RYDE has been operating in Houston’s Third Ward since June with almost 3,000 passengers per month being served. The services will expand beyond Third Ward through Houston Complete Communities, which is a citywide initiative to bring innovation and assistance to the city’s underserved communities.

The two new vehicles are expected to hit the road early December, as well as the continued service of two vehicles in Third Ward.

“The positive aspects of expanding RYDE’s EV transportation initiative beyond Third Ward are twofold,” Mayor Sylvester Turner says in the release. “The environmental impact of the low-emission vehicles coupled with the vital service it provides to underserved neighborhoods makes this a win-win decision for the City of Houston and its residents who are faced with transportation challenges. This funding decision is in lockstep with Houston’s Climate Action Plan and the intention behind the Complete Communities initiative.”

Evolve Houston was founded in 2018 through Houston’s Climate Action Plan and relaunched last year. They recently released a Grant Tracker, which aims to make it easier to find funding opportunities, and assist with current grants available to organizations and individuals that are committed to a goal of zero emissions. The tracker serves as a tool to assist with purchasing an EV and charging equipment. Ultimately, Evolve wants to assist and fund those looking to make the transition to electric. Evolve continues to evolve its sphere of influence, the company still aims for equity, and its goal to have half of the vehicles in the city be electric by 2030.

“Houston maintains some of the lowest population density and longest commute distances of major U.S. cities and we have an immense amount of business and goods that flow through Houston,” Brown says. “ We see a landscape that can uniquely achieve larger financial and environmental benefits of EV technologies.”

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A View From HETI

A team at the University of Houston is changing the game for sodium-ion batteries. Photo via Getty Images

A research lab at the University of Houston has developed a new type of material for sodium-ion batteries that could make them more efficient and boost their energy performance.

Led by Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, the Canepa Research Laboratory is working on a new material called sodium vanadium phosphate, which improves sodium-ion battery performance by increasing the energy density. Energy density is the amount of energy stored per kilogram, and the new material can do so by more than 15 percent. With a higher energy density of 458 watt-hours per kilogram — compared to the 396 watt-hours per kilogram in older sodium-ion batteries — this material brings sodium technology closer to competing with lithium-ion batteries, according to the researchers.

The Canepa Lab used theoretical expertise and computational methods to discover new materials and molecules to help advance clean energy technologies. The team at UH worked with the research groups headed by French researchers Christian Masquelier and Laurence Croguennec from the Laboratoire de Reáctivité et de Chimie des Solides, which is a CNRS laboratory part of the Université de Picardie Jules Verne, in Amiens France, and the Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, Bordeaux, France for the experimental work on the project.

The researchers then created a battery prototype using the new materia sodium vanadium phosphate, which demonstrated energy storage improvements. The material is part of a group called “Na superionic conductors” or NaSICONs, which is made to let sodium ions move in and out of the battery during charging and discharging.

“The continuous voltage change is a key feature,” Canepa says in a news release. “It means the battery can perform more efficiently without compromising the electrode stability. That’s a game-changer for sodium-ion technology.”

The synthesis method used to create sodium vanadium phosphate may be applied to other materials with similar chemistries, which could create new opportunities for advanced energy storage. A paper of this work was published in the journal Nature Materials.

"Our goal is to find clean, sustainable solutions for energy storage," Canepa adds. "This material shows that sodium-ion batteries can meet the high-energy demands of modern technology while being cost-effective and environmentally friendly."

Pieremanuele Canepa, Robert Welch assistant professor of electrical and computer engineering at UH, is leading a research project that can change the effectiveness of sodium-ion batteries. Photo courtesy of UH

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