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CME microgrid power supply solution system

Auxiliary Power Systems

Reliable auxiliary power is critical to the safety and efficiency of oil & gas drilling, production, and mining sites, where grid access is unavailable or unstable. CME collaborates with vetted supply chain partners to professionally customize complete auxiliary power supply systems supporting instrumentation, lighting, MCC cabinets, camp facilities, and small process skids (e.g., chemical injection, metering).

Our solutions cover solar PV systems, diesel generator sets, solar-diesel hybrid microgrids, solar-diesel-storage hybrid microgrids, and power distribution infrastructure. All are engineered for harsh operating conditions ranging from -40°C to 55°C, including sand and salt spray exposure, and support fast on-site deployment.

Core Power & Distribution Components 

We supply a complete lineup of essential auxiliary power system equipment engineered to withstand the harshest operating environments.

On/Off-grid Solar Power Systems

Reliable Standalone Power for Remote Wells, Metering Stations, and Monitoring Loads

Application: Remote single wells (oil/gas/mining), metering stations, monitoring systems, and camp lighting.
Technical Scope: Ground-mounted or rooftop PV arrays (50kW–500kW), anti-PID/sand-resistant modules, MPPT charge controllers, and battery-free DC power for low-load devices.
Value: Eliminates fuel delivery for small, steady loads; reduces OPEX over decades-long production cycles

System Component	Included Equipment/Devices	Function & Notes
Power Generation	PV Modules (Monocrystalline/Polycrystalline)	Anti-PID, sand-resistant coating for harsh environments.
Mounting Structure	Fixed Mounting Racks / Tracking Systems	Galvanized steel or aluminum alloy, adjustable tilt angle.
Control & Protection	MPPT Solar Charge Controller	Maximizes power harvest; prevents battery overcharge/discharge; lightning protection.
Energy Storage	Gel/Lithium Battery Bank (Optional)	Stores energy for night-time or cloudy days; maintains critical loads.
Distribution	DC Combiner Box, DC Distribution Cabinet	Consolidates string currents; includes circuit breakers and surge protection.
Monitoring	Data Logger (RTU)	Remote monitoring of power generation, battery status, and system alarms.

Standalone off-grid solar PV power system for remote oil wells and metering stations

Solar-Diesel Hybrid Microgrids

Optimized Fuel Savings for Medium-Sized Production and Mining Surface Facilities

Application: Medium-sized production sites or mining camps with moderate power demands (100kW–1MW).
Technical Scope: PV arrays + diesel genset + hybrid controller—prioritizes solar power, engages genset only during low-solar or peak loads.
Value: Cuts fuel consumption by 20–40% compared to pure genset setups; extends maintenance intervals

System Component	Included Equipment/Devices	Function & Notes
Power Generation	PV Array + Diesel Generator Set(s)	Dual power sources for redundancy and optimization.
Control Hub	Hybrid Energy Controller	System "brain"; automatically prioritizes solar power and manages generator start/stop.
Switching Gear	ATS (Automatic Transfer Switch) Cabinet	Seamlessly switches between power sources during grid failures or transitions.
Distribution	AC Low-Voltage Distribution Panel	Distributes power to various auxiliary load circuits.
Protection	Anti-Islanding Protection Device	Prevents PV power from back-feeding into the generator, avoiding equipment damage.
Monitoring	Cloud/Local SCADA System	Real-time visualization of PV output, generator fuel consumption, and load profiles.

Solar-Diesel-Storage Hybrid Microgrids

Extended Autonomy and Zero-Emission Operation for Long-Term Fixed Sites

Application: Long-term fixed sites (production wells, mining surface facilities) with high reliability requirements.
Technical Scope: PV arrays + lithium-ion BESS (100kWh–2MWh) + diesel genset + smart EMS—enables black-start, load shifting, and full solar priority.
Value: Reduces genset runtime to <20% annually; meets zero-emission regulations for marginal wells/mining sites.

System Component	Included Equipment/Devices	Function & Notes
Energy Storage	Lithium-ion Battery System (BESS)	Includes battery modules, BMS (Battery Management System), and aerosol/fire suppression.
Conversion Unit	Bi-directional PCS (Power Conversion System)	Converts DC to AC and vice versa; controls charge/discharge rates.
Power Generation	PV Array + Diesel Generator Set(s)	Baseline power sources.
Control Hub	Advanced EMS (Energy Management System)	Develops charge/discharge strategies based on load forecasting and weather data.
Distribution	Grid-Forming Inverter & Load Panel	Creates a stable microgrid voltage and frequency; manages all output circuits.
Thermal Management	Industrial HVAC System	Maintains constant temperature and humidity within the BESS and PCS compartments.

Solar diesel storage BESS hybrid microgrid with long autonomy for fixed mining well sites

Skid mounted substation EX-d transformer power distribution for oil well site

Power Distribution & Transformer Systems

Safe Voltage Conversion, EX-d Isolation, and Power Transmission Across the WellSite

Application: Voltage conversion, EX-d isolation, and power transmission across the wellsite.
Technical Scope: Skid-mounted substations (200–2000kVA), step-up (PV DC→AC) and step-down (480V→208/120V) transformers, EX-d isolation units for hazardous areas (Class I Div 2/Zone 2), and IP55+ enclosures.
Value: Ensures safe, compliant power delivery to all auxiliary loads; minimizes voltage drop over long cable runs.

System Component	Included Equipment/Devices	Function & Notes
Transformation	Oil-Immersed / Dry-Type Transformers	Functions: 1. Step-up: PV 400V DC → 480V AC 2. Step-down: 480V → 208/120V (Instruments/Lighting) 3. Isolation: EX-d certified for hazardous areas.
Switching & Control	HV/LV Switchgear	Includes circuit breakers, disconnect switches, contactors for circuit protection and control.
Protection	Surge Arresters, Relay Protection Devices	Protects against lightning strikes, over-voltage, over-current, and earth faults.
Compensation	SVG (Static Var Generator) Cabinet	Compensates for harmonics generated by VFD loads (e.g., shakers), improving power factor.
Enclosure	Skid-Mounted Substation Housing	Integrates transformer and switchgear on a single base frame for easy transport and lifting.
Explosion Proofing	EX-d Junction Boxes, Cable Glands	Certified for Zone 1/Zone 2 hazardous locations to prevent ignition of flammable gases.

Why Choose CME for Auxiliary Power Systems?

Custom System Design: Our engineering team designs complete auxiliary power systems tailored to your site’s load profile, ambient conditions, and operational requirements.
Component Supply Based on Your Drawings: Already have a design? We can source and integrate all required components (PV, gensets, transformers, switchgear) to match your specifications, ensuring compatibility and cost-efficiency.
Hazardous Area Compliance: All electrical components meet Class I Div 2/Zone 2 standards for oil & gas sites, with EX-d certification for transformers and switchgear.
Rapid Deployment: Skid-mounted substations and containerized gensets reduce on-site installation time by 50% compared to traditional stick-built systems.

Solar PV Modules Warranty: 12‑year product / 25‑year linear power

CME wind-solar-energy storage-diesel hybrid power generation system

CME wind-solar-energy storage-diesel hybrid power generation system for oil & gas

Take Action

Need a custom auxiliary power system for your drilling site or remote well? Contact our engineering team to discuss your load requirements, or share your existing drawings for a component supply quote.