DIESEL GENERATOR EMISSION CONTROL | POWER GENERATION
Diesel
Generator
SCR Systems
NETT Technologies’ BlueMAX™ SCR platform scales from a compact SCR-only configuration, up to full multi-stage systems adding passive or active diesel particulate filtration (and DOC) for high-efficiency PM reduction alongside NOₓ, CO, and HC control, letting you match the aftertreatment package to your emission target, fuel quality, and duty cycle.
BlueMAX™ 300
SCR Only – no dedicated DPF/PM stage
BlueMAX™ PLUS-300
SCR + Passive DPF
BlueMAX™ VOLT-300
SCR + Active DPF(Electric)
BlueMAX™ NOVA-300
SCR + Active DPF + DOC
SOLUTION SELECTION
Which BlueMAX™ SCR System Fits Your Site?
Solution selection depends on your emissions target, permitting jurisdiction, operating duty cycle, and integration constraints. Use this table as a starting point, NETT engineers will confirm the right combination.
| System | NOx | CO | HC | PM | Regen | Verified |
|---|---|---|---|---|---|---|
| BlueMAX™ 300SCR Only | ✓ | ✓ | ✓ | — | — | EPA |
| BlueMAX™ PLUS-300SCR + Passive DPF | ✓ | ✓ | ✓ | ✓ | Passive | EPA |
| BlueMAX™ VOLT-300SCR + Active DPF | ✓ | ✓ | ✓ | ✓ | Active | — |
| BlueMAX™ NOVA-300SCR + Active DPF + DOC | ✓ | ✓ | ✓ | ✓ | Active | CARB |
Not sure where your application lands? Our engineering team will review your generator specs, fuel type, and permitting jurisdiction to confirm the right configuration. Please reach out to our emission solutions experts for a system recommendation.
DIESEL PRODUCTS
Emission Control Systems
All systems are custom engineered to your engine specifications, site constraints, and permitting requirements. No off-the-shelf sizing.
BlueMAX™ 300
Advanced SCR system for NOₓ reduction from medium to heavy-duty diesel generators. Precise urea dosing with real time NOₓ monitoring. No engine recalibration required.
NOₓ 99%
CO 97%
HC 95%
BlueMAX™ PLUS-300
Combined SCR and passive DPF for simultaneous NOₓ and PM reduction. Designed for standby, prime power, peak shaving, and continuous-duty applications. Compact insulated design.
NOₓ 99%
CO 98%
HC 97%
PM 98%
DIESEL | SCR + ACTIVE DPF (Electric)
BlueMAX™ VOLT-300
SCR and active DPF with ECU-controlled regeneration. Active regeneration supports low-load standby operation. The critical performance requirement for power generation backup generators.
NOₓ 99%
CO 96%
HC 94%
HAPs 94%
PM 98%
DIESEL | SCR + ACTIVE DOC/DPF (HCI Injection)
BlueMAX™ NOVA-300
Complete multi-pollutant system combining SCR, active DPF, and DOC. The highest compliance solution for mission-critical power generation installations and strict permitting jurisdictions.
NOₓ 99%
CO 97%
HC 95%
HAPs 95%
PM 98%
ENGINEERING CONSIDERATIONS
What your system must account for
Exhaust Temperature & Regeneration
Passive DPF systems (PLUS-300) rely on sustained exhaust temperatures to regenerate. Standby or variable-load generators that don’t reach or hold sufficient temperature are better suited to active regeneration (VOLT, NOVA), which uses an electric heating element independent of exhaust conditions.
Controls Integration & Genset OEM Compatibility
BlueMAX systems monitor exhaust conditions and DEF dosing via onboard controls that typically need to interface with the generator’s existing control panel (CAN bus, MODBUS, or dry contacts) for alarms and derate signals. Confirm compatibility with your genset OEM’s control architecture, particularly on retrofit installations, before finalizing system selection.
Backpressure & Footprint
Adding DPF or DOC stages increases system length and exhaust backpressure compared to SCR-only. Confirm the generator’s allowable backpressure rating before specifying PLUS, VOLT, or NOVA on existing installations.
Fuel Sulfur Content
DPF- and DOC-equipped systems require ultra-low sulfur diesel (ULSD, ≤15 ppm) to avoid catalyst poisoning and ash accumulation. SCR-only systems are more tolerant, but ULSD is still recommended.
Maintenance Intervals
SCR-only: DEF system checks, catalyst inspection per OEM schedule. Passive DPF: periodic ash cleaning, longer intervals. Active DPF: more frequent ash cleaning, plus heater element inspection.
DEF Infrastructure
All SCR-based systems require DEF storage, delivery, and doing infrastructure. Plan for task sizing relative to runtime, freeze protection in cold climates (DEF freezes near -11°C/ 12°F), and dosing pump/injector maintenance intervals.
Verified & Certified Systems
U.S. EPA
Verified Emission Control Strategy
Verified Emission Control Strategy. Cite directly in permit applications
CARB
Level 3+ Verified
California Air Resources Board. The most stringent standard in North America
ISO 9001:2015
Quality Management Certified
Controlled quality processes across engineering, manufacturing, and delivery
CWB / CSA W47.1
Certified Steel Fabrication
Canadian Welding Bureau certified. Structural quality for industrial applications.
Ready to Spec Your System?
Every installation is custom. Tell us your engine, site, and compliance requirements. Our engineers will scope the right solution.
- Free Application Review
- EPA / CARB Docs Included
- Custom Installation Manuals
- BMS / MODBUS Integration