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Battery Energy Storage Systems (BESS)

Built to Industry Standards

Knobelsdorff (KE) delivers turnkey EPC services for BESS with the same expertise, safety, and precision we bring to substations, solar, and heavy industrial power systems.

2025 Top Solar Contractor Award

Learn More About KE's Turnkey EPC Services

Get in touch to start your BESS project with KE

  • Turnkey BESS EPC from concept to commissioning
  • Industrial electrical and high-voltage expertise up to 765 kV
  • Proven experience connecting 2+ GW of load and generation
  • Full in-house electrical, mechanical, civil and high-voltage expertise
Let's Talk BESS

Why BESS Demands More Than a Typical Solar EPC

Successful BESS delivery requires a deep understanding of power systems: fault behavior, arc-flash, grounding, harmonics, and utility protection schemes. While many EPCs are new to these challenges, KE has spent decades building substations and industrial power infrastructure. KE understands the risk and builds mitigation measures into our projects to deliver safe and reliable systems.

Choosing KE brings you a partner with decades of industrial electrical and high-voltage experience. We design and build storage systems with the same discipline used in substations and heavy industrial facilities, so your asset is ready for the grid from day one.

Your Turnkey BESS EPC

From early studies to energization, Knobelsdorff owns the full lifecycle.

Engineering & Design

  • Electrical, civil, and structural design tailored to your site and use case
  • Utility interconnect, load flow, grounding, arc-flash, short-circuit, and protection studies
  • Integration with existing substations, feeders, and facilities
  • Provide integrated fire protection and SCADA engineering to ensure BESS are safe, compliant, monitored, and reliable, from permitting through commissioning

Preconstruction & Permitting

  • Constructability reviews and schedule planning
  • Support for electrical, fire, building, environmental, and zoning approvals
  • Utility coordination for interconnection and protection requirements

Procurement & 
Supply Chain

  • Strategic sourcing of batteries, PCS, transformers, switchgear, and controls
  • QA/QC derived from substation and industrial power standards
  • Logistics planning to align equipment arrival with construction progress

Construction & Installation

  • Self-performed electrical and high-voltage work
  • Self-performed Civil and Foundations
  • Trusted national partners for fence, landscaping and fire protection
  • National footprint and reach
  • FERC and NERC Compliance

Testing, Commissioning & Handover

  • Protection relay testing and coordination
  • PCS and transformer functional testing
  • Full system energization and performance verification
  • SCADA/communications integration and utility witness testing

Testimonial

BESS install at Marshall Solar Site

“Knobelsdorff delivered a high-quality installation on our BESS project, managing the lift, placement, and electrical work with professionalism. They were highly responsive throughout and demonstrated strong execution capability.”

Josh Wiseman

Managing Director of Technical Services at Eneon ES

KE delivered US Solar a utility-scale and BESS project with precision, speed, and a shared commitment to quality.

View Case Study

Built on Industrial Electrical and High-Voltage Expertise

BESS projects live in the same world as substations, industrial facilities, and high-energy power systems. That world is our home.

KE’s roots in heavy industrial and utility work give developers a partner who understands the reality of high-power infrastructure.

4160 to 765 kV Experience

Interconnections spanning distribution to transmission voltages.

2+ GW of Connected Load and Generation

Proven delivery of complex power systems that pass utility scrutiny and operate reliably.

Full In-House Electrical & HV Workforce

No subcontractors. Knobelsdorff electricians, HV technicians, and commissioning specialists build your BESS.

Deep Power Systems Knowledge

  • Transformers
  • Relays & protection schemes
  • Grounding design
  • Utility communication protocols
  • 2 GW of Load and Generation
  • ISO 9001 Certified
  • 791,704 Field Manhours 
in 2025
  • 650+ Employees and Growing
  • 6 Years in a Row Top U.S. Solar Installer

BESS as a Natural Extension of Our Solar and Industrial Work

Our turnkey EPC experience in utility-scale solar and Industrial projects means the core building blocks of BESS are already familiar territory:

  • Medium-voltage collection systems
  • Transformers, switchgear, inverters, relays and complex protection schemes
  • Substations and grid tie-ins
  • SCADA, metering, and communications
  • Utility interconnection and testing

We apply that same proven framework from engineering, design, preconstruction, permitting, procurement, construction, and commissioning to BESS. The result: fewer surprises, accelerated schedules, and assets that are truly grid-ready and reliable.

Let's Talk BESS

Knobelsdorff 
Partners With:

  • Renewable developers and IPPs integrating storage into new or existing portfolios
  • Utilities seeking grid-scale storage and substation-adjacent BESS
  • Commercial and industrial customers needing behind-the-meter storage for reliability, demand management, and resiliency

Whether your project is co-located with solar, sited at a substation, or brand new greenfield, Knobelsdorff provides a single point of accountability from concept through commissioning.

Ready to Build Storage That Performs Like a Utility Asset?

Your BESS deserves more than a “solar add-on.” It deserves an EPC partner that understands high voltage, industrial electrical work, and utility expectations.

KE designs and builds BESS assets to operate safely and reliably for decades, backed by the same expertise that has delivered substations, solar and industrial power systems, and over two gigawatts of interconnected load and generation.

Learn More About KE's Turnkey EPC Services

Get in touch to start your BESS project with KE