- DIESEL GENERATOR EMISSIONS CONTROL | POWER GENERATION
BlueMAX™ PLUS-300
Integrated SCR & Passive DPF Solution for Stationary Diesel Generators
BlueMAX™ PLUS-300 combines Selective Catalytic Reduction (SCR) with a Passive Diesel Particulate Filter (Passive DPF) to deliver reliable emissions control for stationary diesel generators. Designed for prime power, standby power, and continuous-duty power generation, the system reduces NOₓ, particulate matter (PM), carbon monoxide (CO), and hydrocarbon (HC) emissions while providing simplified maintenance, compact installation, and dependable long-term operation.
99%
NOₓ REDUCTION
98%
PM REDUCTION
98%
CO REDUCTION
97%
HC REDUCTION
EPA
VERIFIED TECHNOLOGY
BUILT FOR
POWER GENERATION
Reliable emissions control for every critical power application.
DATA CENTERS
Mission-critical backup power you can depend on. Zero tolerance for permit risk or downtime.
HOSPITALS
Emergency standby systems where uninterrupted operation is a regulatory and patient safety requirement.
UTILITIES
Peak shaving and grid support where strict emissions permit requirements apply at every site.
MANUFACTURING
Continuous-duty prime power for non-stop industrial operations that can’t tolerate permit disruptions.
SYSTEM OVERVIEW
How the BlueMAX™ PLUS-300 Works
BlueMAX™ PLUS-300 combines a Passive DPF and SCR system to reduce emissions from stationary diesel generators. The Passive DPF captures particulate matter (PM), while the SCR system uses DEF to reduce NOₓ, providing reliable, low-maintenance emissions control for prime power and standby power applications.
Passive DPF
Passive filtration with no active regeneration or external heat source required
Prime & Standby Power Ready
Built for prime power and standby diesel generator applications
Intelligent DEF Control
Closed-loop DEF dosing for consistent NOₓ reduction
Low Maintenance
Passive regeneration reduces maintenance and operating costs.
OEM & Retrofit Ready
Designed for new or existing stationary diesel generators.
CONTROLS AND MONITORING
Visibility & Control
Real-time Data. Smarter Decisions. Maximum uptime.
HMI Display
Real-time NOₓ, DEF level, exhaust pressure, and system status. Active error codes included.
Data Logging
Onboard logging of NOₓ reduction, DEF consumption, and operating hours for compliance reporting.
Alarms & Alerts
3 configurable alarm outputs. BMS dry-contact compatible.
Remote Monitoring
System status and alarm visibility without requiring on-site access.
- MODBUS RTU/TCP
- BMS Integration
PTLOG™ 270SCR Controller
Intuitive onboard controller with real-time system visibility
FREQUENTLY ASKED QUESTIONS
BlueMAX™ PLUS-300 Common Questions
Find quick answers about the PLUS-Series SCR + passive DPF system for stationary diesel power generation.
What is BlueMAX™ PLUS-300?
BlueMAX™ PLUS-300 is an integrated SCR and Passive DPF diesel generator emission control system designed specifically for stationary diesel generators used in prime power, standby power, and continuous-duty applications.
How does the BlueMAX™ PLUS-300 SCR system reduce NOₓ emissions?
The generator SCR system injects DEF (Diesel Exhaust Fluid) upstream of the SCR catalyst using an airless direct-mount injector. The urea decomposes into ammonia, which reacts catalytically with NOₓ to produce harmless nitrogen and water vapor. A NOₓ sensor upstream of the catalyst drives closed-loop dosing for precise control across all load conditions. An ammonia slip catalyst is standard on every unit, eliminating unreacted ammonia while also reducing CO and HC.
Is BlueMAX™ PLUS-300 suitable for prime power and standby generators?
No. The passive DPF in the PLUS-Series regenerates continuously using the heat of normal engine exhaust. No external heater, no forced regeneration cycle, and no planned downtime. This makes it well suited for standby generator applications where the engine runs at low load during weekly testing. PM filtration efficiency exceeds 90% even at low soot loads.
Does the BlueMAX™ PLUS-300 carry EPA verification?
The BlueMAX™ PLUS-100 is included on EPA’s Verified Technologies List for Clean Diesel. The PLUS 300 PowerGen system achieves 99% NOₓ, and 98% PM reduction based on current engineering performance data. Contact the NETT team to discuss documentation and permitting support for your specific application and air district requirements.
Can the PLUS-300 meet data center emission compliance requirements?
Data centers operating emergency standby diesel generators face increasingly strict EPA RICE NESHAP, CARB and local air district requirements. The BlueMAX™ PLUS-300 is engineered specifically for stationary power generation applications and achieves up to 99% NOₓ AND 98% PM reduction. Performance levels that support compliance with the most stringent air district permit conditions. NETT engineers can review Your generator configuration, site location, and permit requirements to confirm the right system for your application.
Can the PLUS-300 be retrofitted to an existing generator?
Yes. The PLUS-Series is designed for both OEM new-build and retrofit installations. No engine recalibration or engine mapping is required. The NOₓ sensor-based closed-loop control strategy makes it compatible with both mechanically and electronically controlled diesel engines. NETT engineers will review your engine model, exhaust routing, site constraints, and permitting requirements before confirming the right configuration.
How does BlueMAX™ PLUS-300 work?
BlueMAX™ PLUS-300 combines a Passive Diesel Particulate Filter (Passive DPF) with Selective Catalytic Reduction (SCR). The Passive DPF captures particulate matter (PM) and regenerates naturally under suitable exhaust temperatures, while the SCR system uses Diesel Exhaust Fluid (DEF) to reduce nitrogen oxides (NOₓ).
Does BlueMAX™ PLUS-300 require active regeneration?
No. The Passive DPF regenerates naturally during normal engine operation when exhaust temperatures are sufficient, eliminating the need for electrically assisted regeneration.
Does BlueMAX™ PLUS-300 require DEF?
Yes. The SCR system uses Diesel Exhaust Fluid (DEF) and intelligent closed-loop dosing to optimize NOₓ reduction.
Still have questions?
Our emissions control experts are here to help.
GET STARTED
Ready to Meet Your Emissions Requirements?
Talk to a NETT Technologies solutions expert about your diesel generator SCR system requirements. Scoped, engineered, and delivered as one integrated aftertreatment system.
- Free application review with an emissions solutions expert
- Customized installation & maintenance manuals
- BMS / MODBUS integration support
- No engine mapping required. OEM and retrofit ready
READY TO SPEC YOUR SYSTEM?
Custom Installation? Not a Problem?
Tell us your engine, site, and compliance requirements. Our engineers will scope the right diesel generator emission control device for your application.
DOWNLOADABLE DOCUMENTS
