State of EV Charging: Megawatt-Scale Infrastructure Arrives

The EV charging sector crossed into the megawatt era in early 2026, with charging platforms now scaling from 1.2 MW validated installations^[1] in March to ABB’s 10 MW depot platform^[2] launched in June, while bidirectional vehicle-to-grid demonstrations simultaneously reached 750 kW through Scania’s Megawatt Charging System^[3].

Megawatt Charging Becomes Commercial Reality

The transition from kilowatt to megawatt charging infrastructure accelerated dramatically in the first half of 2026. Tesla opened its first public Megacharger in Ontario, California^[4] on March 8 delivering 1.2 MW per stall, followed by EV Realty, Kempower and Windrose validating 1.2 MW charging^[1] on March 25. By June, ABB E-mobility launched the OM X-Series^[2], a depot charging platform spanning 800 kW to 10 MW designed specifically for heavy-duty applications. Scania demonstrated vehicle-to-grid capability at 750 kW^[3] with 1,000 amps bidirectional flow through the Megawatt Charging System standard on June 2. This infrastructure buildout directly supports the heavy-duty fleet transition, with WattEV ordering 370 Tesla Semis^[5] and Forum Mobility landing a 60-truck Tesla Semi order^[6], both announced May 5.

Multi-Megawatt Depot Hubs Concentrate in Southern California

Southern California emerged as the epicenter for large-scale truck charging infrastructure, with multiple facilities exceeding 5 MW coming online. WattEV doubled its San Bernardino depot to 11.5 MW^[7] in February 2026, expanding from 5.5 MW to support increased Class 8 truck charging capacity. EV Realty opened a 9 MW truck charging hub with 76 high-power ports^[8] in San Bernardino on April 9, creating one of the nation’s largest commercial truck charging facilities. Outside the heavy-duty sector, the Helix Water District completed an $11 million, 5.9 MW shared EV depot^[9] in El Cajon, California, opening in early April 2026. This geographic concentration reflects both the logistics corridor demand along Interstate 15 and California’s zero-emission vehicle mandates driving early infrastructure investment ahead of fleet electrification timelines.

Vehicle-to-Grid Transitions from Pilot to Paid Programs

Bidirectional charging evolved from demonstration projects to compensated utility programs during the first half of 2026. LADWP reopened the nation’s first municipal V2G program^[10] on June 2, offering $0.17 per kWh for power discharged during peak periods with 20 MW of program capacity. PSE and ChargeScape launched Washington’s first vehicle-to-home pilot^[11] on March 18 using Ford F-150 Lightning and Kia EV9 vehicles, focusing on backup power rather than grid services. The technical capability scaled dramatically, with Scania demonstrating 750 kW bidirectional power flow^[3] at 1,000 amps through the Megawatt Charging System standard. These developments suggest V2G is transitioning from residential backup applications toward commercial fleet participation in wholesale energy markets, particularly as depot charging infrastructure reaches multi-megawatt scale with sufficient capacity to provide meaningful grid services.

Integrated Solar-Battery-Charging Systems Gain Traction

Multiple projects demonstrated the convergence of solar generation, battery storage, and EV charging into unified systems. eVerged and World4Solar announced an integrated partnership^[12] on March 16, 2026, combining solar, battery, and EV charging infrastructure. ON Power commissioned Iceland’s first solar-battery EV charging facility^[13] on March 17, installing 230 Jolywood bifacial 445 W modules totaling over 100 kW across rooftop and facade surfaces. Zero Carbon Charge secured $6.2 million equity from DBSA^[14] to build off-grid solar-powered truck charging stations along South Africa’s N3 corridor. This integration addresses both grid capacity constraints and renewable energy goals, allowing charging infrastructure deployment in locations where utility interconnection would otherwise limit power availability or impose lengthy timelines for service upgrades.

Solid-State Transformers Enable Next-Generation Architecture

Advanced power electronics are emerging as critical enablers for megawatt-scale charging infrastructure. Eaton’s 2021 DOE award of $4.9 million for solid-state transformer development^[15] through a three-year program concluded in December 2024, setting up the company’s 2025 Resilient Power acquisition. These solid-state transformers offer advantages over conventional transformer technology for high-power charging applications, including reduced size, weight, and improved power quality. The technology becomes increasingly relevant as depot charging installations scale toward 10 MW, where traditional utility interconnection and transformer infrastructure face both technical and economic constraints. Meanwhile, PG&E projected residential rates could drop 4.5 percent^[16] by 2035, potentially improving the economics of home charging relative to commercial charging networks.

What to Watch

Megawatt Charging Network Expansion: Tesla mapped a 66-site Megacharger network across 15 states^[4] following its March 8 Ontario opening, signaling nationwide heavy-duty charging infrastructure deployment through 2026-2027.

V2G Compensation Models: LADWP’s $0.17/kWh peak discharge rate^[10] and 20 MW program capacity establish an early benchmark for municipal V2G economics that other utilities may reference.

Depot Capacity Race: With facilities now reaching 11.5 MW^[7] and platforms scaling to 10 MW^[2], the infrastructure is outpacing current fleet electrification, suggesting either anticipatory buildout or upcoming large fleet announcements.

Bidirectional Heavy-Duty Applications: Scania’s 750 kW V2G demonstration^[3] suggests commercial trucks may participate in grid services during depot dwell time, creating new revenue streams beyond transportation.

Why It Matters

Pillar pages are how operators, planners, and procurement leads orient themselves in a fast-moving subsector. The value is not the aggregate numbers — those drift weekly — but the ability to follow named projects, vendors, and policy actions as they progress through stages. Use this index as a launch point into the stage-tagged underlying articles, where the actual decision-grade detail lives. For utility planners, this is most useful as a quarterly scan; for procurement leads tracking a specific vendor or technology, the named-entity articles linked from here are the higher-resolution view.

Critical Perspective

This pillar aggregates MGRID’s recent coverage of the category. Readers should treat the aggregate numbers cited above as a snapshot of a fast-moving sector, not a final scoreboard. Three caveats: (1) project counts and capacity figures conflate announced, funded, under-construction, and operational tiers, so individual articles should be consulted for stage-specific status; (2) the corpus reflects what MGRID has covered, not the full universe of activity globally; (3) MW and dollar totals are nominal at time of publication and do not adjust for cancelled or restructured projects. Use the pillar to navigate, but ground decisions in the underlying named-entity articles.

Sources

1. EV Realty, Kempower and Windrose Validate Megawatt Charging ^[1]
2. ABB E-mobility Launches OM X-Series, an 800 kW-to-10 MW Depot Charging Platform ^[2]
3. Scania Demonstrates Vehicle-to-Grid at 750 kW Through Megawatt Charging System ^[3]
4. Tesla Maps 66-Site Megacharger Network Across 15 States ^[4]
5. WattEV Orders 370 Tesla Semis to Launch Largest Electric Freight ^[5]
6. Forum Mobility Lands 60-Truck Tesla Semi Order ^[6]
7. WattEV Doubles San Bernardino Depot to 11.5 MW With Megawatt… ^[7]
8. EV Realty Opens 9 MW Truck Charging Hub With 76 Ports ^[8]
9. San Diego Water District Opens 5.9 MW Shared EV Depot ^[9]
10. LADWP Reopens Nation’s First Municipal V2G Program, Paying $0.17/kWh Over Peak ^[10]
11. PSE & ChargeScape Launch Washington’s First V2H EV Pilot ^[11]
12. eVerged and World4Solar Partner on Integrated Solar-Battery EV ^[12]
13. ON Power Commissions Iceland’s First Solar-Battery EV Charging ^[13]
14. Zero Carbon Charge Builds Off-Grid Solar-Powered Truck Charging ^[14]
15. How Eaton’s 2021 DOE $4.9 Million Solid-State Transformer Award Set Up the 2025 Resilient Power Acquisition ^[15]
16. PG&E Residential Rates Could Drop 4.5% ^[16]

References

1. [1] EV Realty, Kempower and Windrose Validate Megawatt Charging
2. [2] ABB E-mobility Launches OM X-Series, an 800 kW-to-10 MW Depot Charging Platform
3. [3] Scania Demonstrates Vehicle-to-Grid at 750 kW Through Megawatt Charging System
4. [4] Tesla Maps 66-Site Megacharger Network Across 15 States
5. [5] WattEV Orders 370 Tesla Semis to Launch Largest Electric Freight
6. [6] Forum Mobility Lands 60-Truck Tesla Semi Order
7. [7] WattEV Doubles San Bernardino Depot to 11.5 MW With Megawatt…
8. [8] EV Realty Opens 9 MW Truck Charging Hub With 76 Ports
9. [9] San Diego Water District Opens 5.9 MW Shared EV Depot
10. [10] LADWP Reopens Nation’s First Municipal V2G Program, Paying $0.17/kWh Over Peak
11. [11] PSE & ChargeScape Launch Washington’s First V2H EV Pilot
12. [12] eVerged and World4Solar Partner on Integrated Solar-Battery EV
13. [13] ON Power Commissions Iceland’s First Solar-Battery EV Charging
14. [14] Zero Carbon Charge Builds Off-Grid Solar-Powered Truck Charging
15. [15] How Eaton’s 2021 DOE $4.9 Million Solid-State Transformer Award Set Up the 2025 Resilient Power Acquisition
16. [16] PG&E Residential Rates Could Drop 4.5%

Related Coverage

• Kempower Delivers First Public Megawatt Truck Charging in Sweden: Megawatt truck charging infrastructure deployment in Sweden
• WattEV Unveils 12 to 15 kV Solid-State Transformer for Megawatt Charging of Heavy-Duty Electric Trucks: Megawatt charging for heavy-duty trucks with solid-state transformers
• WattEV Doubles San Bernardino Depot to 11.5 MW With Megawatt…: Megawatt EV charging depot expansion with new infrastructure
• Houston Metro Deploys 12 MW Charging Depot for 200-Bus Electric: Large-scale megawatt charging depot for electric buses deployed

Update: Late June 2026

The heavy-duty and fleet segments did the heavy lifting in late June while passenger charging inched along. Con Edison energized New York State’s largest electric school bus fleet hub, Milence opened its first electric-truck charging hub in Denmark, and Renewable Properties broke ground on a 4 MW fleet charging depot in Richmond. These are the megawatt-scale, depot-anchored projects this pillar argued would define the next phase, and they are landing faster in trucking and transit than in the retail fast-charging network.

Vehicle-to-grid moved from demonstration toward deployment at a meaningful count: GM activated 250,000 bidirectional EVs, a fleet large enough to matter to a balancing authority rather than a pilot footnote. On the retail side, Electrify America opened a Santa Barbara fast-charging hub — useful, but a reminder that consumer buildout is still measured in individual sites while fleet charging is measured in megawatts. As the site’s smallest master, ev-charging’s real gap remains coverage depth on megawatt charging (MCS) standards and NEVI’s stop-start funding, both of which will shape whether these depot projects scale.