Dogwood Resilient PowerCass County, Missouri
Aerial visualization of the proposed Dogwood Resilient Power facility in Cass County, with the existing substation and power plant beyond (artist's rendering, Farnsworth Group)

Cass County, Missouri

Dogwood Resilient Power

A proposed 280 MW / 1,120 MWh battery energy storage project designed to keep power affordable and reliable.

280 MW / 1,120 MWh

Battery storage capacity

$240M

Estimated capital investment

$800k/yr

Estimated local tax revenue

The project

Resilient power for a growing grid

Dogwood Resilient Power is a proposed standalone battery energy storage facility on a 10.7-acre developed footprint in Cass County, Missouri. The facility stores electricity when it's abundant and delivers it back to the grid when demand is high — strengthening reliability and holding down power costs for the community, while bringing construction jobs and new tax revenue.

280 MW

Power capacity

1,120 MWh of energy — full output for about 4 hours at a time

10.7 acres

Developed footprint

A small share of the overall site, inside a secure fenced yard

LFP

Battery technology

Lithium iron phosphate batteries in third-generation containers that meet NFPA and UL safety standards

$240M

Capital investment

Estimated total private investment in Cass County

$800k

Annual tax revenue

Estimated annual property taxes to the county

$12M

For Pleasant Hill Schools

Estimated over 20 years of operation

Up to 50

Construction jobs

At peak during the 6–9 month build

2–4

Permanent jobs

Long-term operations and maintenance roles

Siting

Choosing the right site

Finding the right site for Dogwood Resilient Power took careful evaluation: access to suitable grid equipment, land suited to this use, and enough space to house the equipment safely.

Dogwood Resilient Power is proposed for Cass County, Missouri.

Esri satellite imagery

White outline — full property (73.8 acres)Orange outline — developed footprint (fenced) (10.7 acres)

Esri satellite

Grid access

The site sits close to existing grid infrastructure, supporting the interconnection study now underway.

Room for setbacks

The site design allows ample space for setbacks, buffers, and fire-code-required spacing.

Small footprint

The developed area is 10.7 acres — a small share of the overall site, low to the ground and fully fenced.

Where we are

Development timeline

All dates are estimates. The schedule depends on regulatory, permitting, and interconnection processes.

  1. Site control

    Secured

    Land agreements are in place.

  2. Interconnection study

    In progress — current stage

    Grid-connection studies with the utility are now underway.

  3. Permitting

    Planned 2026/2027

    Land use approvals and environmental permits at the local, state, and federal level.

  4. Construction

    Targeted 2028/2029

    Approximately 6 to 9 months of construction.

  5. Commercial operation

    Targeted 2029/2030

    The facility begins delivering power to the grid.

The technology

What is battery energy storage?

A battery energy storage system, or BESS, works like a large-scale version of the battery in your phone. Think of it as a savings account for electricity: power gets deposited during low-demand hours and withdrawn when the grid needs it most.

A containerised battery energy storage unit with its doors open, showing the racks of battery modules inside and the power conversion cabinet at the end

Cycle

How BESS works

8%

  1. 1

    Charge

    Store when energy is abundant

    During low-demand hours, the system charges from the grid, storing energy while it is cheap and plentiful.

  2. 2

    Hold

    Ready when the system tightens

    Stored energy stays available under continuous monitoring, ready for peaks, weather events, or reliability needs.

  3. 3

    Dispatch

    Release when the grid needs it

    At high demand, the facility discharges to homes and businesses — stabilizing the system without new peaking plants or transmission buildout.

Component by component

What a BESS is made of

These are the five pieces that matter.

  1. 1

    Battery modules

    Racks of sealed lithium iron phosphate (LFP) cells, the stable third-generation chemistry, stacked inside each container.

  2. 2

    Battery Management System

    Electronics that monitor every cell 24/7 and can isolate a single module long before an issue develops.

  3. 3

    Thermal management

    Closed-loop liquid cooling keeps cells in their ideal temperature window. No water supply connection required.

  4. 4

    Power conversion

    Inverters convert the batteries' DC into grid-ready AC — and back again when the system charges.

  5. 5

    Steel enclosure

    Sealed, containerized units anchored to a concrete pad, installed in a fenced yard, and fully removable at end of life.

At the substation

Sited next to existing wires

Utility-scale projects interconnect at the substation or transmission line — typically tens to hundreds of megawatts, with multi-hour duration. Not a power plant, not a factory: a quiet, fenced equipment yard.

Battery containers integrated into the switchyard of an electrical substation

Tap a + to read each callout

Why storage

Why the grid is asking for storage

U.S. electricity demand is growing while older plants retire and new infrastructure fights through multi-year queues. Storage adds dependable capacity fast — and it works regardless of how the power is generated.

Strength when the system is stressed

Batteries deliver in the exact hours the grid is tightest (summer peaks, winter cold snaps), reducing outage risk without new power plants.

Better use of existing wires

Storage makes far better use of the grid we already have, adding capacity without expanding the transmission network.

A quiet, low-impact neighbor

No smokestack, no water use for operations, minimal traffic after construction, and fence-line sound comparable to a household HVAC unit.

Community benefits

New tax revenue for cities and counties, lease income for landowners, and local jobs during construction — value that stays local.

Market trajectory

Growing industry

Storage is the fastest-growing resource on the grid — worldwide. Global utility-scale battery capacity rose more than twelvefold from 2020 to 2024, to about 124 GW, and keeps climbing as operators use batteries to manage peaks, steady the system, and defer new wires.

EMEA

120GW

APAC

400GW

AMER

150GW

Battery storage capacity by region

EMEA
APAC
AMER
0
100
200
300
400

Cumulative GW, rounded. Through 2025 based on IEA, EIA, CNESA, and LCP Delta; 2030 outlook informed by BNEF and CNESA. Asia-Pacific is led by China (~145 GW new-type storage by end-2025).

From above

What utility-scale storage looks like

Fenced equipment yards beside existing infrastructure — compact, quiet, and low to the ground.

Operating facilities of the same type and scale — what utility-scale battery storage looks like in practice.

Our commitments

Built to be a good neighbor

01

Safety first

Designed, permitted, and operated to meet all applicable fire and life-safety codes and standards, including code-required spacing, detection, and suppression systems. Safety is built into every phase.

02

Community partnership

As the project's developer, we work in partnership with the host community — lining up project benefits that are clear, binding, and supportive of community priorities, keeping people informed through every phase, and answering questions honestly and directly.

03

Responsible development

The project will go through environmental and regulatory review at the local, state, and federal level, with the goal of minimizing impact on the surrounding community and land.

Answers

Frequently asked questions

About the project

What is Dogwood Resilient Power?+
A proposed 280 MW / 1,120 MWh battery energy storage project in Cass County, Missouri, designed to safely provide affordable electricity and make the grid more resilient. Developed by Sofos Power.
What economic benefits does the project bring to the community?+
Approximately $800,000 in annual tax revenue, 30 to 50 construction jobs at peak, 2 to 4 permanent positions, and an estimated $12 million or more for the Pleasant Hill School District over 20 years.
Will Sofos Power own and operate the facility?+
Sofos Power develops the project and works directly with the host community to line up benefits that are clear, binding, and supportive of community priorities. An established energy company builds and operates the facility, and commitments made during development carry with the project.
How does a battery energy storage system charge and discharge?+
The system draws electricity from the grid when power is abundant, stores it, and then discharges it back to the grid, typically when demand is high.
What kind of batteries are used?+
Like most utility-scale battery storage systems built today, Dogwood Resilient Power is expected to use lithium-ion batteries — the same technology found in most battery-powered electronics. The batteries are expected to be housed in third-generation lithium iron phosphate (LFP) containers that meet NFPA and UL safety standards.
Where does the stored electricity come from?+
The system draws power from the existing electric grid. It's a standalone storage project, not paired with on-site generation.
How long do battery storage systems last?+
Equipment on site is expected to last 15–20 years.
What happens to the batteries at the end of their life?+
At the end of its operating life, the project will be decommissioned safely — equipment removed and the site returned to its original state — as required by Cass County BESS regulations and the nationwide NFPA 855 standard.

Safety & neighbors

Is battery storage safe?+
Yes. Battery storage is an established, increasingly common technology: 50,000+ MW across 1,000+ BESS facilities are operating safely in the U.S., with even more around the world. The project will be designed, permitted, and operated to meet all applicable fire and life-safety codes, including code-required spacing, detection, and suppression systems.
What happens if there's a problem or malfunction?+
The facility will include safety systems designed to detect and contain incidents on site, and will go through fire-safety and environmental review as part of permitting. Every piece of equipment on site will be monitored remotely 24/7, with automatic shutoffs built in to handle malfunctions before they become larger issues.
Could an incident affect local water resources?+
No connection to a water supply is required for normal operation — cooling is a closed loop, similar to automotive refrigeration. Fire safety and environmental protection are central to the project's design, and the project will go through both environmental and fire-safety review as part of permitting.
Does battery storage produce emissions or pollution?+
No. Unlike a power plant, a battery storage system doesn't burn fuel or generate emissions on site. It stores and releases electricity that's already part of the grid.
Does battery storage make sound?+
Cooling equipment does produce sound on site. But it runs only when necessary, and engineered sound studies are expected to show that the system will be quiet to inaudible from surrounding properties.

Contact

Have a question?

Every message is read by a person on the development team. We typically reply within two business days.

info@sofospower.com

I am a…

Dogwood Resilient Power

Cass County, Missouri

© 2026 · Developed by Sofos Power