BREEAM NOx emissions
 Aim and benefits
 When to consider
 Stage 2
Mechanical Engineer calculates that their concept achieves credits. They tell BREEAM assessor to target 3 credits. This should then gets written into the ERs, ideally in an M&E document and in a BREEAM document.
 Stage 3
Mechanical Engineer doing Stage 3 design should calculate their design still achieves 3 credits. This may be the contractor's engineer, or could still be the client side engineer, depending on how the project is being tendered.
 Stage 4
If there was a design change, as part of either:
The technical submission to the client team regarding the design change, the POL 02 credits should have been recalculated by the contractor side mechanical engineer and approved by the client side engineer,
 Stage 5
The contractor's Mechanical Sub Contractor should submit a technical submittal for the kit they propose is procured including updated POL 02 calculations. The AP and/or M&E designers should approve the technical submittal having checked the proposed kit meets POL 02 (among other) requirements.
 Questions to ask while seeking compliance
Be wary under BREEAM UK New Construction as the NOx emissions for electric heating are so high, that a couple of electric heaters (over the door? small quantity of office areas in an otherwise unheated building?) can make it nearly impossible to achieve many credits.
DHW heating can be excluded from the calculation where designer can demonstrate it is less than 10% of the building's total energy consumption (e.g. via Building's Energy Performance Certificate). Point of use water heaters are excluded by default.
The reason to ask this is because the NOx for the CHP system will have to be calculated separately, and under BREEAM 2014 UK New Construction schemes and earlier, the methodology is very favourable to CHP leading to more available credits. Note: under BREEAM 2018 UK New Construction this is not the case.
 Tips and best practice
District heating system:
For project connected to the district heating system which is not under the developer's control and mandated by a local authority (or other statutory body) maximum number of credits to be awarded. Where this is not mandatory the NOx emissions calculation to be provided. (see KBCN0979) Where a district heating system also generates electricity, this can be used to off-set NOx emissions from grid electricity, the calculation methodology for CHP systems can be used. (see KBCN0857)
 Typical evidence
Typical design stage evidence may include:
- Boiler/CHP/Heat Emitter/Cooling/Heater schedules
- Drawings showing quantity of each item of heating/hot water/cooling equipment
- Datasheets and/or manufacturer emails confirming NOx emissions for each piece of equipment
- Letter or calculation sheet (be careful that a calc sheet is robust - signed? dated?) calculating the NOx emissions for the development.
 Applicable Schemes
The guidelines collated in this ISD aim to support sustainable best practice in the topic described. This issue may apply in multiple BREEAM schemes covering different stages in the life of a building, different building types and different year versions. Some content may be generic but scheme nuances should also be taken into account. Refer to the comments below and related articles to this one to understand these nuances. See this document for further guidelines.
 Find out more
--Sandra Turcaniova 15:11, 03 Jan 2018 (BST)
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Issue support documents
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Issue support documents are written for named BREEAM Issues or sub-issues. More info. (ac) = awaiting content.
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- BREEAM Sustainability champion
- BREEAM Environmental management
- BREEAM Considerate construction
- BREEAM Monitoring of construction site impacts
- BREEAM Aftercare support
- BREEAM Seasonal commissioning
- BREEAM Testing and inspecting building fabric
- BREEAM Life cycle cost and service life planning
- BREEAM Stakeholder consultation (ac)
- BREEAM Commissioning (ac)
- BREEAM Handover (ac)
- BREEAM Inclusive and accessible design (ac)
- BREEAM Post occupancy evaluation
 Health and Wellbeing
- BREEAM Visual comfort Daylighting (partly ac)
- BREEAM Visual comfort View out
- BREEAM Visual comfort Glare control
- BREEAM Indoor air quality plan
- BREEAM Indoor air quality Ventilation
- BREEAM Thermal comfort
- BREEAM Internal and external lighting (ac)
- BREEAM Indoor pollutants VOCs (ac)
- BREEAM Potential for natural ventilation (ac)
- BREEAM Safe containment in laboratories (ac)
- BREEAM Acoustic performance
- BREEAM Safety and security (ac)
- BREEAM Reduction of energy use and carbon emissions
- BREEAM Energy monitoring
- BREEAM External lighting
- BREEAM Low carbon design
- BREEAM Passive design
- BREEAM Free cooling
- BREEAM LZC technologies
- BREEAM Energy efficient cold storage (partly ac)
- BREEAM Energy efficient transportation systems
- BREEAM Energy efficient laboratory systems
- BREEAM Energy efficient equipment (partly ac)
- BREEAM Drying space
- BREEAM Transport assessment and travel plan
- BREEAM Public transport accessibility
- BREEAM Sustainable transport measures
- BREEAM Proximity to amenities
- BREEAM Cyclist facilities
- BREEAM Alternative modes of transport (ac)
- BREEAM Maximum car parking capacity
- BREEAM Travel plan
- BREEAM Home office (ac)
- BREEAM Water consumption
- BREEAM Water efficient equipment
- BREEAM Water monitoring
- BREEAM Water leak detection (ac)
- BREEAM Hard landscaping and boundary protection
- BREEAM Responsible sourcing of materials
- BREEAM Insulation
- BREEAM Designing for durability and resilience
- BREEAM Life cycle impacts
- BREEAM Material efficiency (ac)
- BREEAM Construction waste management
- BREEAM Recycled aggregates
- BREEAM Speculative floor & ceiling finishes
- BREEAM Adaptation to climate change
- BREEAM Operational waste
- BREEAM Functional adaptability (ac)
 Land Use and Ecology
- BREEAM Site Selection
- BREEAM Ecological value of site
- BREEAM Protection of ecological features
- BREEAM Minimising impact on existing site ecology
- BREEAM Enhancing site ecology
- BREEAM Long term impact on biodiversity (ac)
- BREEAM Impact of refrigerants
- BREEAM NOx emissions
- BREEAM Flood risk management (ac)
- BREEAM Surface water run-off (ac)
- BREEAM Reduction of night time light pollution (partly ac)
- BREEAM Reduction of noise pollution
Once an ISD has been initially created the '(ac)' marker can be removed
This particular index is based around the structure of the New Construction and RFO schemes.