Maryland’s Vehicle-to-Grid Leap: Progress with Potential Pitfalls

MARYLAND News (4/11/2024) – In a bold move, Maryland has become the inaugural state in the United States to pass legislation mandating utilities to accommodate bidirectional charging for electric vehicles (EVs) on the distribution grid. Dubbed the Distributed Renewable Integration and Vehicle Electrification (DRIVE) Act, the bill sailed through the Maryland General Assembly on April 2nd.

Under the DRIVE Act, EVs equipped with bidirectional chargers can now both draw energy from and inject energy into the grid, marking a significant leap in vehicle-to-grid (V2G) technology. Additionally, the legislation paves the way for the establishment of distributed energy resource (DER) virtual power plants, consolidating the capabilities of various home energy systems including solar PV, batteries, and smart thermostats.

Moreover, the DRIVE Act extends utility time-of-use tariffs, granting EV owners the flexibility to charge their vehicles at discounted rates during off-peak hours. These provisions will apply to investor-owned utilities (IOUs) in Maryland.

While awaiting gubernatorial approval, the state’s Public Service Commission is tasked with formulating new regulations by May 1, 2025, to enable V2G implementation. Governor Wes Moore is expected to sign the bill into law in the coming days, pending approval.

The significance of Maryland’s initiative is underscored by Advanced Energy United, noting that it positions the state as a trailblazer in adopting such progressive legislation. In contrast, California’s efforts to enact similar measures faced setbacks, with Senate Bill SB-233, aimed at mandating bidirectional charging, ultimately defeated.

While the DRIVE Act promises advancements in clean energy and grid stability, it may also provoke confusion or concern among some Marylanders. The prospect of bidirectional charging and the integration of EVs into the grid may raise questions about potential impacts on electricity costs, infrastructure, and grid reliability.

Meanwhile, V2G technology continues to gain traction globally, with notable developments such as Ford’s collaboration with residential solar providers to integrate V2H compatibility into its F150 Lightning truck. In the UK, Octopus Energy recently launched a mass-market V2G tariff, reflecting the growing interest in leveraging EVs for grid stability and flexibility.

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