Your Electricity Bill Is Growing Faster Than Your Business
Peak Tariffs Hit When Production Runs Hardest
Factories pay the highest price per kWh exactly when demand peaks. Every kWh you shift from peak to off-peak hours goes straight back to your margin.
One Outage Can Cost a Whole Production Batch
Grid failures stop lines, spoil inventory and stress equipment. Diesel backup is slow to start, expensive to run and costly to maintain.
Rooftop Solar Goes to Waste Without Storage
Midday solar surplus is exported cheaply — then the same site buys evening power back at peak price. Storage keeps that energy value in-house.
Four Ways a C&I System Earns Its Keep
Peak-Valley Arbitrage
Charge at off-peak prices, discharge into peak windows — with two charge/discharge cycles per day where tariffs allow. For most factories this is the largest and most predictable revenue stream.
Demand Charge Management
Storage clips short demand spikes before they set your monthly demand charge. A few well-timed discharges can cut a major share of capacity-based fees.
Solar Self-Consumption
Pair storage with rooftop PV and raise on-site solar usage from roughly 30% to over 80% — you keep the full retail value of every kWh your roof produces.
Backup Power Without the Generator
Millisecond-level switchover keeps critical loads — production lines, cold storage, servers — running through outages, with no fuel, no noise and no exhaust.
Which System Fits Your Site?
| Your Situation | Recommended System | Capacity Range | |
|---|---|---|---|
| Buildings, workshops, small C&I — loads below 100 kW | Stack Type HV 20–81kWh | 20.48 – 81.92 kWh (2+1 to 8+1 modules) | View Details → |
| Factories and industrial parks — loads of 100–500 kW | Stack Type HV 100–261kWh | 100.48 – 261.25 kWh (5+1 to 13+1 modules) | View Details → |
| Outdoor, unattended or harsh-environment sites | Cabinet Type 96–256kWh | 96 – 256 kWh, five all-in-one models | View Details → |
| Above 500 kW or multi-MWh C&I projects | 20FT Container BESS | 3.44 / 5.015 MWh per unit, parallel expansion | See Container ESS → |
Proven in the Field
Ho Chi Minh City Factory Peak-Shaving Project
A full-height 13+1 tower cuts peak demand and supports the factory during Vietnam’s evening tariff window.
Malaysia Rooftop Solar + Cabinet Project ▶ VIDEO
A rooftop PV array paired with an outdoor battery cabinet — commissioned and running stably as the building’s emergency power supply. Watch the project video.
Johannesburg Industrial Park Backup Project
Three stack towers inside a secure equipment room carry critical loads through load-shedding windows.
Vientiane Hybrid Solar Storage Project ▶ VIDEO
A 209kWh cabinet with wall-mounted hybrid inverters in a dedicated plant room — watch the on-site commissioning video.
Chonburi EV-Charging Hub Project
A 256kWh cabinet under a solar carport buffers DC fast chargers, avoiding a costly grid-connection upgrade.
Kuala Lumpur Plant Peak-Shaving Project
Two 225kWh cabinets on a raised platform shave evening peaks for a manufacturing plant near Kuala Lumpur.
Delivered as a Project, Not Just a Product
1 · System Design
Send us your load profile and tariff sheet — our engineers size the system, model the savings and return a concrete proposal with payback estimate.
2 · Factory Acceptance Test
Every system is fully assembled and tested before shipment — battery, PCS, BMS and communications verified as one unit, not on your site.
3 · Delivered & Commissioned
Pre-integrated systems arrive ready to connect: stack modules bolt together, cabinets set on a pad. Typical sites are commissioned in days, not weeks.
4 · Monitoring & Support
WiFi real-time monitoring and EMS-ready communication come standard, with remote diagnostics and engineering support for the life of the system.
Send Us Your Load Profile — Get a Sized Proposal
Download the Marwell Solar C&I BESS Catalog 2026 for full specifications, or share your electricity bill and site details — our engineers will reply within 24 hours.