21st Century Truck Stop: 1st MD/HD eTruckStop in California

Deployment of modular scalable DER package will provide reliable low-cost renewable energy for a dedicated fleet of ten Class 8 battery electric trucks to support broader public access MDHD Plug-in Bakersfield, CA.

WattEV, Inc.


El Segundo, CA

Recipient Location


Senate District


Assembly District



Amount Spent



Project Status

Project Update

A Critical Project Revuew meeting was held on 3/9/22 where WattEV provide critical updates on the project progress. WattEV continues to coordinate with PG&E and the CPUC in an effort to resolve the interconnection challenges and seeking to operate the charging facilities in an ‘island microgrid mode’ until the PG&E interconnection issues can be resolved.

The Issue

Medium- and heavy-duty (MDHD) vehicle electrification is beginning to accelerate but lacks the necessary infrastructure to support widespread adoption. Currently, adoption of MDHD PEVs has been limited to short-range and return-to-base operations. To increase adoption to longer-range vehicles and ensure equity among fleets that lack the physical and financial resources for onsite charging infrastructure, public charging options need to exist.

Project Innovation

The purpose of this Agreement is to fund the design, construction, and commissioning of a modular distributed energy resource (DER) package composed of solar, second life battery storage, and an AC/DC distribution control system at a public access electric truck stop. The scalable DER package will provide reliable low-cost renewable energy for a dedicated fleet of ten Class 8 battery electric trucks as well as support broader public access Medium-Duty Heavy-Duty Plug-in Electric Vehicle (MDHD PEV) charging for fleets in a burgeoning trade corridor.

Project Goals

Demonstrate an integrated DER package with 4.5 MWh for second-life batteries and 3.85 MW size for solar arrays.
Provide resilient supply of electricity to MDHD PEVs during outages.

Project Benefits

The integrated DER package is designed to have minimal negative impact on the grid since, with on-site energy storage and managed charging, it is scaled to provide energy to customers as needed. The DER (paired with managed charging) is planned to produce all of the power needed for customer charging, mitigating impact of time-of-use rate changes and potential public safety power shutoffs.

Greater Reliability


The proposed DER will grid-connected and capable of supplying excess power to the grid and, alternately, drawing from the grid should weather conditions or other issues negatively impact electricity production from the solar PV/

Energy Security

Energy Security

The proposed DER can provide up to 6.5 hours of off-grid charging for the entire truck stop for both public and truck fleet vehicles, or potentially multiple days due to continued contributions from the solar PV generation.

Lower Costs


The LCOE has been calculated as $0.238/kWh using the unmanaged charging with no DERs, and after applying charging management and DERs, the LCOE reduces to $0.145/kWh, which is a $0.094/kWh improvement over the baseline case.

Environmental & Public Health

Environmental Sustainability

The project will achieve significant emissions reductions through both its dedicated fleet as well as through public charging.



Gladstein, Neandross & Associates (GNA)


California Central Asthma Collaborative


Match Partners


Gladstein, Neandross & Associates (GNA)


California Commercial Solar, dba CalCom Energy




Contra Costa Electric


Windmill Capital Partners






Swanson Engineering Inc.



Contact the Team