Diesel gensets, excavators, site vehicles
Site office, temporary lighting, electric pumps
Concrete, rebar, asphalt, public fill disposal
Monthly Carbon Emissions Over Time
Periodic tracking across civil project timeline (tCO₂e)
Category Breakdown
Emissions by Civil Activity
Emissions by Civil Phase
Site Formation, Piling, Drainage, Paving, Barging
HK CIC Decarbonization Note
In Hong Kong civil projects, concrete (Portland cement) and diesel plant equipment (piling rigs/excavators) typically constitute over 70% of embodied and direct emissions. Transitioning to B5 biodiesel and GGBS concrete yields highest savings.
Input / Update Periodic Carbon Data
Select from HK civil engineering standard activity presets or enter custom quantities.
| Period | Civil Phase | Activity Description | Scope | Quantity | Unit | Factor (kg CO₂e) | Emissions (tCO₂e) | Actions |
|---|
Hong Kong Civil Decarbonization Playbook
Actionable carbon reduction measures tailored for HK Highways, Drainage (DSD), and Civil Engineering Works (CEDD)
Replace Euro VI diesel with B5 Biodiesel in site generators, mobile cranes, and piling rigs. Mandate grid connection over diesel generators for site offices. Switch to battery-electric mini-excavators where feasible.
Specify 60% GGBS (Ground Granulated Blast-furnace Slag) or 25% PFA (Pulverised Fuel Ash) cement replacement for mass concrete pour, drainage culverts, retaining walls, and bridge piers.
Utilize marine barging points for bulk earthworks and soil disposal to TKO Area 137 or Tuen Mun Area 38 public fills instead of long-distance road haulage dump trucks through congested urban HK roads.
Use crushed rock aggregates from local HK C&D rock crushing plants (e.g. Tuen Mun / Lam Tei) for sub-base road layers and drainage bedding to minimize virgin quarry imports.
Adopt Design for Manufacture and Assembly (DfMA) for precast concrete manholes, noise barrier units, bridge girders, and culvert segments to minimize on-site concrete waste and site power demand.
Install flexible solar photovoltaic panels along site perimeter hoardings and site office roofs to offset site office lighting and monitoring sensors under CLP/HKE Feed-in Tariff schemes.
Reference HK Carbon Factors Benchmark Table
Values aligned with HK Construction Industry Council (CIC) Carbon Assessment Tool & Local Power Companies
| Material / Activity | Unit | Emission Factor (kg CO₂e/unit) | HK Standard Source |
|---|---|---|---|
| CLP Electricity Grid Power (Kowloon / NT) | kWh | 0.390 | CLP Power Sustainability Report |
| HKE Electricity Grid Power (HK Island) | kWh | 0.680 | HK Electric Sustainability Report |
| Euro VI Diesel Oil (Machinery / Gensets) | Litre | 2.614 | EPD HK GHG Reporting Guidelines |
| B5 Biodiesel Blend | Litre | 2.480 | HK CIC Carbon Assessment Tool |
| Ready-Mix Concrete Grade 45/20 (OPC) | m³ | 310.000 | HK CIC Carbon Benchmark |
| Ready-Mix Concrete with 60% GGBS Slag | m³ | 175.000 | HK Concrete Supplier EPD |
| Steel Reinforcement Bar (Rebar - Local/PRD) | Tonne | 1,850.000 | HK CIC Embodied Carbon Data |
| Dump Truck Muck Disposal (to Public Fill) | Tonne-km | 0.142 | HK EPD Logistics Guidelines |
| Marine Barging Excavated Soil | Tonne-km | 0.038 | HK Marine Transport EPD |