Carbon Footprint of Working from Home

0.5-1.7tonnes CO2saved per year

Global avgvs car commuting (depends on distance)

This figure is a global average from peer-reviewed research. Actual values vary by country due to differences in energy grids, farming practices, and supply chains. Use our calculators for country-specific estimates.

Key Takeaway

Working from home eliminates commuting emissions — the largest carbon component of office work. A UK-average car commuter travelling 20 km each way saves roughly 1.2 tonnes CO2 per year by working from home full-time. Home energy use (heating, lighting, computer) adds back 200-500 kg CO2/year depending on the country and season, but the net saving is almost always positive.

In this article

The Commute Saving: WFH's Biggest Win
The Home Energy Trade-Off
Hybrid Working: The Optimal Balance?
How to Minimise Your WFH Carbon Footprint
Frequently Asked Questions

The Commute Saving: WFH's Biggest Win

For car commuters, the commute is typically the largest single source of work-related carbon emissions. A 20 km each-way car commute produces roughly 1,200-1,800 kg CO2 per year (48 weeks, 5 days/week). Even a 10 km commute produces 600-900 kg. By contrast, public transport commutes produce 200-500 kg/year, and cycling/walking is near zero. Working from home eliminates commuting emissions entirely — making it the single most impactful change for car commuters.

The Home Energy Trade-Off

Working from home increases residential energy use: heating (or cooling) an extra room during work hours, running a computer and monitor for 8+ hours, and additional lighting. In the UK, this adds roughly 300-500 kg CO2 per year. In countries with clean electricity (France, Canada), the additional energy use produces less CO2. In cold climates with gas heating, the winter home-energy penalty can partially offset commuting savings. On balance, WFH is still net-positive for carbon in virtually all scenarios studied.

Hybrid Working: The Optimal Balance?

Research from the UK Carbon Trust suggests that hybrid working (2-3 days in the office, 2-3 at home) captures most of the carbon benefit of full WFH while maintaining office collaboration. The key variable is commute mode: car commuters benefit most from maximising WFH days, while public transport commuters see smaller differences. Office buildings also become more efficient per-person when occupancy is predictable and concentrated.

How to Minimise Your WFH Carbon Footprint

Whether you work from home or the office, these actions reduce work-related emissions: (1) If commuting, use public transport, cycle, or carpool — even 2-3 car-free commute days per week saves 400-700 kg CO2/year. (2) At home, heat only the room you work in rather than the whole house. (3) Use a laptop instead of a desktop — laptops use 30-80W versus 200-500W for desktops with monitors. (4) Ensure good home insulation to reduce heating/cooling energy. (5) Use LED lighting — a single LED desk lamp uses 5-10W versus 40-60W for an incandescent equivalent.

Frequently Asked Questions

Does working from home reduce carbon emissions?

Yes, in almost all cases. The commute saving (600-1,800 kg CO2/year for car commuters) outweighs the home energy increase (200-500 kg). The net saving is typically 0.5-1.7 tonnes CO2 per year for car commuters. Public transport commuters see smaller but still positive net savings.

How much CO2 does commuting produce?

A 20 km each-way car commute produces roughly 1,200-1,800 kg CO2/year. A similar distance by train produces 200-400 kg, and by bus 300-500 kg. Cycling and walking produce negligible emissions.

Is hybrid working better than full remote?

For carbon, full remote is slightly better than hybrid because it eliminates all commute emissions. However, hybrid working captures 60-80% of the carbon benefit while maintaining in-person collaboration. The difference between 2 and 5 WFH days per week is smaller than the difference between 0 and 2.

Does WFH increase home electricity bills?

Yes, typically by 10-20% depending on usage patterns, climate, and heating type. However, the saving on commute costs (fuel, fares, parking) usually more than offsets the increase in home energy bills.

Sources & References

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