EV Charging – The Importance of Affordable, Convenient Access

EV Charging – The Importance of Affordable, Convenient Access

RMI
RMIApr 3, 2026

Why It Matters

The high cost and grid strain of megawatt‑level fast chargers could impede widespread EV adoption, whereas expanding accessible, low‑power charging improves equity and reduces overall system expenses.

Key Takeaways

  • BYD flash charger recharges 60% in five minutes.
  • Fast chargers demand 1.2 MW, 150× Level 2 power.
  • High-power stations increase grid upgrade costs and charger prices.
  • 80% of EV charging occurs at home or work.
  • Multifamily housing limits equitable access to low‑power charging.

Pulse Analysis

BYD’s Flash Charging system, built around its Blade Battery, promises to replenish 60 % of an electric‑vehicle’s range in roughly five minutes—a figure that rivals the refueling time of gasoline cars. The technology relies on a 1.2‑megawatt charger, a power level more than a hundred times that of typical Level 2 residential units. While such speed is attractive for long‑haul trips, delivering megawatt‑scale power strains distribution transformers, requires costly utility upgrades, and creates “spiky” demand that lowers equipment utilization. Consequently, the price tag for fast‑charging sessions can be six times higher than home electricity rates.

Charging data shows that roughly 80 % of EV sessions happen at home or the workplace, where electricity is already available and rates are low. This “root” charging model reduces reliance on public fast stations and eases pressure on the grid. However, in dense urban areas, especially in multifamily dwellings, installing Level 2 chargers faces permitting hurdles, interconnection complexities, and limited parking spaces. Low‑income renters are disproportionately affected, lacking both private parking and affordable public options, which can slow adoption unless policymakers streamline approvals and incentivize building‑level infrastructure.

Utilities, planners, and automakers can align by prioritizing low‑power, high‑availability charging as the foundation of the network. Tools such as RMI’s GridUp forecast EV load and pinpoint where modest charging stations will deliver the greatest impact, helping avoid over‑building expensive fast‑charging corridors. Targeted subsidies for multifamily retrofits, streamlined permitting, and workforce development can accelerate deployment. Fast chargers will remain essential for long‑distance travel and heavy‑duty fleets, but a cost‑effective, equitable base of Level 2 chargers will drive the mass market transition and keep electricity bills manageable.

EV Charging – The Importance of Affordable, Convenient Access

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