1075 kWh Industrial Solar Storage Case Study | COENG

Meta Description: Explore an illustrative COENG 500 kW / 1075 kWh BESS project covering industrial solar storage, system integration, delivery and commissioning.

COENG 500 kW / 1075 kWh Containerized BESS for an Industrial Facility in the Netherlands

Project Overview

This illustrative case follows a fictional industrial customer evaluating a COENG EnerCube 3.0 containerized battery energy storage system to improve the use of rooftop solar generation and manage electricity demand.

The project demonstrates the planning, equipment coordination, shipment preparation and commissioning activities involved in a commercial and industrial energy storage installation.

Customer Background and Procurement Requirements

For this scenario, DeltaWest Industrial Services B.V. operates a facility combining daytime manufacturing, warehouse handling and evening dispatch activities.

Its rooftop photovoltaic installation produces electricity during daylight hours, while facility demand varies with production schedules and equipment use. The mismatch between solar generation and electricity consumption creates an opportunity to evaluate industrial battery storage.

The customer’s procurement team focuses on three priorities: selecting an appropriate power and energy configuration, integrating storage with existing equipment, and establishing a clear delivery and service scope.

The customer also requires a supplier proposal that separates the containerized BESS from site-specific work, including foundations, external cabling, protection modifications, lifting and local electrical installation.

The Initial Challenges

Solar Generation and Facility Demand Did Not Always Align

During periods of lower production activity, solar generation could exceed the facility’s immediate consumption. Later in the day, warehouse and dispatch operations continued after solar output declined.

The project therefore required a solar battery storage system that could shift part of the available daytime generation to later operating periods. Battery sizing needed to reflect the actual load profile rather than the PV system’s nameplate capacity alone.

Short Demand Peaks Required Separate Power Assessment

Simultaneous operation of production equipment and material-handling systems could create demand peaks.

The engineering review needed to distinguish between peak power requirements, measured in kW, and energy requirements, measured in kWh. A battery with sufficient energy capacity would still need an appropriate PCS rating and control strategy to address the selected demand-management objective.

The Existing Electrical System Had to Be Reviewed

The proposed BESS connection required assessment of the site’s electrical drawings, switchgear, protection arrangements, available connection capacity and existing PV controls.

Although EnerCube 3.0 specifies AC 400 V and a 3P4W+PE connection, those values alone do not establish compatibility with every installation. External protection, earthing, cable sizing and any transformer requirements had to be defined for the project.

Installation Space and Delivery Access Were Limited

The proposed storage location was near a service road used by delivery vehicles. The site layout needed to accommodate the container, maintenance access, ventilation and vehicle movements.

The delivery plan also required a suitable unloading area and a lifting arrangement that would avoid interfering with normal warehouse operations.

Solution Selection: COENG EnerCube 3.0 P500C1075

The illustrative project selected the COENG P500C1075 configuration for further engineering evaluation.

This model provides 500 kW rated output and 1075 kWh beginning-of-life battery capacity. It uses LiFePO4 cells and integrates battery PACKs, a power conversion system, power distribution, fire protection, temperature control and intelligent monitoring within a standard 20HQ container.

AC coupling was proposed to integrate the battery energy storage system with the facility’s existing solar installation.

The proposed operating strategy prioritized storing available surplus solar energy and discharging during selected facility demand periods. Final dispatch settings would depend on the approved site controls, electricity contract and operational requirements.

The 1075 kWh rating was treated as beginning-of-life capacity, not a guarantee of energy delivered to the facility. Usable energy and discharge duration would be confirmed after accounting for the operating state-of-charge range, conversion losses and auxiliary consumption.

Project Process

Requirement Collection and Site Assessment

The first stage assembled the information required for a meaningful BESS proposal: interval electricity consumption data, PV generation records, operating schedules, electrical drawings and photographs of the proposed installation area.

The customer also identified its main objective and any restrictions on export, charging demand or operating hours. This prevented the equipment proposal from being based on an assumed use case.

Configuration and Scope Review

The customer, storage supplier and local electrical contractor reviewed the selected battery configuration and divided the responsibilities for supply and installation.

The equipment scope covered the agreed containerized BESS configuration. The site-work scope addressed the foundation, external electrical connection, communications network, lifting and local approvals.

This review also identified whether additional equipment was required. EnerCube 3.0 does not include an isolation transformer, so any project-specific transformer requirement needed to be addressed separately.

Resolving the Space and Access Constraint

The initial layout placed the container too close to a frequently used service route. In the illustrative design review, the proposed position was adjusted to preserve vehicle access and allow maintenance activities.

The layout used the specified container dimensions of 6058 × 2438 × 2896 mm as the starting point. Additional clearances and foundation details were left to the approved installation drawings.

The lifting contractor was required to use the final configuration-specific shipping weight. The datasheet’s maximum weight of 24,500 kg was not treated as the confirmed shipment weight for this particular unit.

Communications and Control Coordination

The integration review addressed the connection between the BESS and the site monitoring or energy-management system.

EnerCube 3.0 specifies Ethernet communication and Modbus TCP/IP. The parties therefore needed to agree on the applicable register map, available control commands, network access and responsibility for commissioning.

This avoided assuming that protocol compatibility automatically provided complete functional integration.

Pre-Shipment Inspection and Acceptance

The proposed factory acceptance plan included inspection of the equipment identity, configuration, electrical assembly and accessible service areas.

Functional checks were to cover communication, monitoring, alarm indications, thermal-management operation and charging or discharging functions within the agreed test scope.

The buyer would review the inspection records and resolve any outstanding items before shipment release. Such checks would support contractual acceptance without being presented as a substitute for applicable certification or site commissioning.

Shipment and Delivery Arrangements

The illustrative delivery route involved export from China, sea freight to Rotterdam and onward road transport to the customer’s facility.

Shipment preparation included confirming the final equipment dimensions and weight, transport configuration, handling instructions and carrier requirements for a battery-containing energy storage system.

The documentation package would include the commercial invoice, packing list, equipment identification, applicable transport and test documentation, and installation information required under the agreed supply contract.

Before booking, the logistics team would confirm carrier acceptance and destination handling arrangements. The product’s design for integrated transport with batteries would not replace those shipment-specific checks.

The customer’s procurement team also needed clear responsibility assignments for freight, insurance, customs clearance, local transport and unloading under the agreed Incoterm.

At the destination, delivery was to be coordinated with the lifting contractor and site team. Incoming inspection would check the external condition, equipment identity and any visible transport damage before positioning and connection.

Installation and Commissioning

After placement on the approved foundation, the local contractor would complete the external power connection, earthing and communications installation.

Commissioning would then proceed through equipment inspection, connection checks, communication verification and controlled functional testing.

For the proposed solar self-consumption and peak-shaving application, the commissioning team would validate metering direction, charging and discharging commands, agreed operating limits and responses to selected alarm conditions.

Backup or islanded operation was not assumed within this project scope. Any later requirement for critical-load support would need a separate assessment of controls, switching and electrical design.

Operator Training and Handover

The handover package would explain routine monitoring, alarm escalation, service access and the agreed maintenance responsibilities.

Training would cover how operators review system status, recognize abnormal indications and contact the designated service team.

Warranty documentation would specify the agreed coverage and operating conditions. The product datasheet lists a five-year warranty with an option to extend to ten years, subject to contract terms.

How Project Success Would Be Measured

Because this is an illustrative case, no measured savings or operating results are claimed.

A real project would assess performance using commissioning records and operating data, including:

• Solar energy charged into the battery and subsequently supplied to facility loads.
• Changes in peak grid imports during comparable operating periods.
• Actual delivered energy and auxiliary consumption.
• Alarm history, availability and maintenance requirements.
• Electricity-cost changes calculated using the applicable tariff and a defined baseline.

These measurements would allow the customer to evaluate whether the commercial battery storage system achieved its agreed objectives.

Planning a Similar Industrial Energy Storage Project?

COENG EnerCube 3.0 offers containerized BESS configurations from 400 kW / 860 kWh to 800 kW / 1720 kWh for project-specific commercial and industrial energy storage requirements.

Share your project location, electricity load profile, existing solar installation, target power and capacity, grid details and installation conditions to support a configuration review.

Call to Action: Request a COENG Containerized BESS Project Proposal