The Electrical Equipment That Makes Your DER System Work

AMRENERGY engineers, supplies, and installs the complete electrical infrastructure for C&I DER systems — switchgear, inverters, transformers, automatic transfer switches, metering, and all balance-of-system components — specified, coordinated, and monitored as a unified system.

480V–35kV

Voltage Range

UL / IEEE

Standards Compliance

NEC 2023

Code Compliance

MODBus

DERMS Integration

Why Electrical Equipment Matters

Every DER System Is Only as Reliable as Its Electrical Infrastructure

Solar panels, batteries, fuel cells, and generators generate and store power. But none of it reaches your facility safely or efficiently without the right electrical equipment — switchgear that protects the system, inverters that convert DC to grid-compatible AC, transformers that step voltage for distribution, transfer switches that manage source transitions, and metering that feeds the data for intelligent optimization.

AMRENERGY specifies, sources, and installs all electrical balance-of-system (BoS) equipment as an integrated part of your DER system design. Every component is selected for compatibility with your generation assets, your facility’s existing infrastructure, your local utility interconnection requirements, and our DERMS monitoring platform.

The result is an electrical system that is code-compliant, utility-approved, and fully monitored from day one — with a single point of accountability from the inverter to the switchboard.

Equipment Categories

Complete Electrical Infrastructure for C&I DER Systems

Solar & Storage Inverters

String, central, and three-phase inverters convert DC power from solar arrays and battery systems to grid-compatible AC. AMRENERGY specifies inverters with the right efficiency curve, grid-forming capability, and reactive power control for your installation.
String Inverters Central Inverters Hybrid Inverters Grid-Forming IEEE 1547

Automatic Transfer Switches (ATS)

ATS units monitor grid voltage and frequency, automatically switching your facility to on-site generation within milliseconds of a grid anomaly. AMRENERGY integrates open-transition and closed-transition ATS for different load criticality levels.
Open Transition Closed Transition Bypass-Isolation UL 1008 NEMA 3R / 4

Switchgear & Switchboards

Commercial and medium-voltage switchgear protects your DER system and facility electrical infrastructure. AMRENERGY selects and installs low-voltage and medium-voltage assemblies rated for your system's fault current levels and operational requirements..
LV Switchgear MV Switchgear 480V–35kV UL 891 ANSI C37

Distribution Transformers

Step-up and step-down transformers match generation and storage output voltages to your facility's distribution voltage and utility interconnection requirements. AMRENERGY engineers transformer sizing and impedance for DER grid interconnection compliance..
Pad-Mount Dry-Type Step-Up / Down IEEE C57 DOE 2016

Revenue-Grade Metering & Sub-Metering

Accurate revenue-grade metering captures solar generation, battery throughput, generator output, and facility consumption for utility compliance, incentive verification, and DERMS optimization. Sub-metering enables per-tenant billing allocation.
Revenue-Grade ANSI C12 Sub-Metering PMU Integration MODBus RTU

Protection Relays & Overcurrent Devices

Protective relaying coordinates fault isolation across your DER system — preventing cascading failures and ensuring IEEE 1547 anti-islanding compliance. AMRENERGY conducts protection coordination studies to confirm correct relay settings for your interconnection.
Relay Coordination Anti-Islanding IEEE 1547 Arc Flash Studies NFPA 70E

DC Combiners & String Monitoring

DC combiner boxes aggregate multiple solar string outputs before feeding the central inverter, with integrated string-level monitoring and fusing. AMRENERGY specifies configurations that maximize performance visibility and simplify fault diagnosis.
String Combiners DC Disconnects AFCI Protection NEC 690 String Monitoring

Energy Management & Control Panels

DER control panels house the AMREN microgrid edge controller, communication modules, human-machine interfaces, and integration wiring that connect all generation and storage assets to our DERMS platform for real-time monitoring and dispatch control.
Edge Controller HMI Display SCADA Integration UL 508A NEMA 4X

Standards & Compliance

Engineered to Every Applicable Standard

Commercial and industrial DER electrical equipment must comply with utility interconnection, safety, arc flash, equipment rating, and grid code requirements. AMRENERGY’s engineering team ensures every component selection, installation, and commissioning step meets or exceeds applicable standards — streamlining utility approval and permitting.

The AMRENERGY Advantage

One Engineer. One Contract. One System That Works.

When electrical equipment is specified by one party, installed by another, and monitored by a third, accountability gaps create costly failures — mismatched protection settings, incompatible communication protocols, and equipment that was never designed to work together. AMRENERGY eliminates these gaps by engineering your complete electrical infrastructure as a system, not a collection of components.

Every piece of electrical equipment AMRENERGY supplies is selected, configured, and tested to work with every other component in your DER system — and with the AMRENERGY DERMS platform — before it leaves our staging facility.

01Pre-Configured and Factory-Tested

Equipment is staged, programmed, and pre-tested at our facility before shipping — reducing on-site installation time and eliminating field configuration errors.

02Protection Coordination Included

AMRENERGY conducts arc flash and protection coordination studies for every installation — ensuring correct relay settings and NEC/NFPA 70E compliance from day one.

03Utility Interconnection Management

We manage the complete utility interconnection application process — from initial application through final approval — using in-house licensed electrical engineers.

04DERMS Integration Out of the Box

Every electrical component is pre-configured to communicate with AMRENERGY's DERMS platform. Real-time monitoring starts the day your system comes online.

Project Lifecycle

How AMRENERGY Delivers YourElectrical Infrastructure

Step 01
Electrical Assessment

We review your existing single-line diagram, utility interconnection requirements, and load schedule to establish the electrical design basis.

Step 02
Engineering Design

Stamped single-line diagrams, equipment specs, arc flash study, and protection coordination study — all produced in-house by licensed engineers.

Step 03
Equipment Procurement

AMRENERGY procures and pre-configures all electrical equipment from vetted OEM suppliers, staging and testing at our facility before delivery.

Step 04
Permitting & Utility Approvalt

We manage electrical permit applications, AHJ coordination, and utility interconnection agreements from submission through approval.

Step 05
Installation & Commissioning

Licensed electricians install per AMRENERGY drawings, followed by comprehensive commissioning testing before Permission to Operate.

Step 06
O&M & Monitoring

All equipment connects to AMRENERGY DERMS for 24/7 performance monitoring, fault detection, and preventive maintenance scheduling.

Applications

Electrical Equipment Solutions forEvery C&I Facility Type

Solar + Storage Installations

Complete BoS electrical for rooftop, carport, and ground-mount solar with integrated battery storage — from string combiners through utility interconnection switchgear.

Generator Paralleling Systems

Synchronization switchgear, paralleling controls, and automatic transfer switches for facilities running multiple generators or operating in island mode.

Campus and Multi-Building Microgrids

Medium-voltage distribution switchgear and metering infrastructure for campus microgrids serving multiple buildings from a centralized DER system.

EV Fleet Charging Infrastructure

Service entrance upgrades, distribution panels, sub-metering, and demand management equipment for commercial EV fleet charging depots.

Utility Interconnection Upgrades

New or upgraded point-of-interconnection equipment — transformers, switchgear, metering — to meet utility requirements for C&I DER installations.

Critical Facility Upgrades

Redundant electrical infrastructure, bypass-isolation transfer switches, and protection upgrades for data centers, hospitals, and mission-critical facilities.

Let's Engineer Your Electrical Infrastructure Right the First Time

AMRENERGY’s licensed electrical engineers will assess your facility’s electrical system and design the optimal infrastructure for your DER installation.

FAQ

Common Questions AboutDER Electrical Equipment

What is balance-of-system (BoS) equipment in a DER installation?

Balance of system refers to all the electrical components in a DER installation other than the primary generation or storage equipment itself — inverters, transformers, switchgear, wiring, conduit, combiners, meters, disconnect switches, and control panels. BoS equipment typically represents 30–50% of a DER system’s total installed cost, and its quality and specification significantly affect system reliability, efficiency, and service life.

Does AMRENERGY handle utility interconnection applications?

Yes. AMRENERGY manages the complete utility interconnection process, including the interconnection application, required engineering studies (protection coordination, short-circuit, load flow), coordination with the utility’s engineering department, and obtaining final interconnection approval before commissioning. This is included in AMRENERGY’s turnkey EPC scope.

What arc flash study services does AMRENERGY provide?

AMRENERGY conducts arc flash hazard analysis per NFPA 70E and IEEE 1584 for all new DER electrical installations. The study establishes incident energy levels at each switchboard and panel, enabling proper PPE labeling and safe work practices. Arc flash studies are required by NFPA 70E and are included in AMRENERGY’s engineering scope for all C&I DER installations.

Can AMRENERGY upgrade an existing electrical service for a new DER system?

Yes. Many C&I facilities require service entrance upgrades, new distribution panels, or medium-voltage infrastructure changes to accommodate a DER addition. AMRENERGY’s electrical engineers assess your existing infrastructure, identify required upgrades, and include them in the overall DER system design and construction scope.

How does metering equipment connect to AMRENERGY's DERMS platform?

Revenue-grade meters and sub-meters are configured to communicate via MODBus RTU or TCP/IP to the AMREN edge controller installed at your site. The edge controller aggregates all meter data and forwards it to the AMRENERGY DERMS cloud platform, where it is used for real-time optimization, performance reporting, and sub-metering billing — typically with 15-second data resolution.