driving energy transition

This Houston organization is on a mission to shrink the city's carbon footprint — one EV at a time

Evolve Houston, founded in 2018 through Houston’s Climate Action Plan and relaunched last year, has launched a new tool for EV incentivization. Photo via Evolve

Equity and environmental impact characteristics often used to describe a company’s outlook on increased sustainability and fighting climate change.

Evolve Houston, which was founded in 2018 through Houston’s Climate Action Plan and relaunched last year, is one of the organizations leading the way, and now with their Grant Tracker program, they are giving back to those who are giving back to the planet.

“Raising awareness is a critical part of accelerating a new technology, this includes awareness of incentives that individuals and fleets in the Greater Houston region may be eligible for,” Casey Brown, executive director and president, tells EnergyCapital. “Beyond understanding incentives, most Houstonians have not experienced an EV for themselves. With the support of our Founding Members (Shell, NRG Energy, CenterPoint Energy, University of Houston, and the City of Houston), we offer educational and experiential ways for Houstonians to interact with EVs and learn more about the benefits.”

The Grant Tracker 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.

Anup Parikh and his company Pangea Charging, through EVOLVE, was granted a project to help bring charging capacity for EVs to help build the infrastructure in areas and apartment complexes that traditionally would not have them.

“People see electric vehicles as high-end and a luxury lifestyle, when in fact it can happen for everybody,” Parikh said in a promotional video.

In addition to the Grant Tracker program, Evolve’s Mobility Microgrant Initiative will partner with local nonprofits,community reviewers, and corporate catalysts to award funding to eMobility projects aimed at serving mobility needs in Houston's underserved neighborhoods. In July, Evolve teamed up with RYDE and District D Council Member Carolyn Evans-Shabazz to bring the free on-demand electric local shuttle service to residents in the Third Ward area, which was one of the many microgrants associated with the project. RYDE’s service in the area has been extended recently into the fall and “until further notice” according to a newsletter from EVOLVE.

“Private investments in this sector follow EV adoption,“ Brown says. “Investing in areas early creates more opportunity for EV technology interaction and benefits.

"We are excited about the success of our Equity Program and the exciting projects it has funded across Houston," he continues. "Today, we accomplish this through our eMobility Microgrant Initiative, a community-led investment program focused on historically disadvantaged communities, and aimed to tackle community needs with electric vehicle technologies. We have had a very successful Round 1 of investments this year and we are excited to announce round two grant winners in January of 2024.”

As Evolve continues to evolve its sphere of influence, the company still aims for its goal to have half of the vehicles in the city be electric by 2030. The company says that EVs should be for all Houstonians, not just for some.

“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 said. “We see a landscape that can uniquely achieve larger financial and environmental benefits of EV technologies. One way that we share these benefits is being the Presenting Sponsor of the Houston Auto Show. We also summarize the local EV sector through our R.I.S.E. report and maintain an actionable, forward view in our EV Roadmap; both sources can be found on our website and are undergoing a refresh as we close 2023.”

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A View From HETI

Rice's Atin Pramanik and a team in Pulickel Ajayan's lab shared new findings that offer a sustainable alternative to lithium batteries by enhancing sodium and potassium ion storage. Photo by Jeff Fitlow/Courtesy Rice University

A new study by researchers from Rice University’s Department of Materials Science and NanoEngineering, Baylor University and the Indian Institute of Science Education and Research Thiruvananthapuram has introduced a solution that could help develop more affordable and sustainable sodium-ion batteries.

The findings were recently published in the journal Advanced Functional Materials.

The team worked with tiny cone- and disc-shaped carbon materials from oil and gas industry byproducts with a pure graphitic structure. The forms allow for more efficient energy storage with larger sodium and potassium ions, which is a challenge for anodes in battery research. Sodium and potassium are more widely available and cheaper than lithium.

“For years, we’ve known that sodium and potassium are attractive alternatives to lithium,” Pulickel Ajayan, the Benjamin M. and Mary Greenwood Anderson Professor of Engineering at Rice, said in a news release. “But the challenge has always been finding carbon-based anode materials that can store these larger ions efficiently.”

Lithium-ion batteries traditionally rely on graphite as an anode material. However, traditional graphite structures cannot efficiently store sodium or potassium energy, since the atoms are too big and interactions become too complex to slide in and out of graphite’s layers. The cone and disc structures “offer curvature and spacing that welcome sodium and potassium ions without the need for chemical doping (the process of intentionally adding small amounts of specific atoms or molecules to change its properties) or other artificial modifications,” according to the study.

“This is one of the first clear demonstrations of sodium-ion intercalation in pure graphitic materials with such stability,” Atin Pramanik, first author of the study and a postdoctoral associate in Ajayan’s lab, said in the release. “It challenges the belief that pure graphite can’t work with sodium.”

In lab tests, the carbon cones and discs stored about 230 milliamp-hours of charge per gram (mAh/g) by using sodium ions. They still held 151 mAh/g even after 2,000 fast charging cycles. They also worked with potassium-ion batteries.

“We believe this discovery opens up a new design space for battery anodes,” Ajayan added in the release. “Instead of changing the chemistry, we’re changing the shape, and that’s proving to be just as interesting.”

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