The digital sector accounts for 4% of global CO₂ emissions — more than aviation. Choosing an eco-friendly host is therefore a genuinely impactful decision. Here is the most complete comparison of green hosting providers in 2026.
Criteria for an Eco-Friendly Host
- PUE (Power Usage Effectiveness) – Data centre energy efficiency ratio. Ideal: < 1.3
- Energy sources – 100% renewables (hydro, wind, solar)
- Cooling – Natural free cooling vs energy-intensive air conditioning
- Certifications – ISO 14001, ISO 50001, green labels
- Carbon offsetting – For residual emissions
Green Hosting Comparison
| Host | Renewable energy | Average PUE | Certifications | Eco score |
|---|---|---|---|---|
| Infomaniak | 100% hydro/wind | 1.08 | ISO 14001, ISO 50001 | 5/5 |
| Hetzner | 100% renewable | 1.15 | Partial | 4/5 |
| OVH | Partial | 1.20 | ISO 14001 | 3.5/5 |
| Google Cloud | Carbon offsets | 1.10 | Multiple | 3/5 |
| AWS | Partial | 1.15 | Multiple | 3/5 |
Infomaniak: The Eco Champion
Swiss Hydroelectric Power
Infomaniak's data centres run on 100% hydroelectric energy produced in Switzerland — one of the cleanest and most stable energy sources available.
- No carbon offsetting – Genuinely green energy, not paper credits
- Local energy – Produced within 100 km of the data centres
PUE of 1.08: World-Class
A PUE of 1.0 would be perfect. Infomaniak's 1.08 means only 8% of energy is lost to heat and infrastructure. For context:
- Global data centre average: 1.5
- Infomaniak: 1.08 — among the best in the world
Natural Free Cooling
Geneva's data centres benefit from Lake Geneva for natural cooling (free cooling from lake water), saving millions of kWh annually vs traditional air conditioning.
The Real Impact of Your Host Choice
| Host | CO₂ emissions/year (1 WordPress site) |
|---|---|
| Infomaniak | ~0.5 kg CO₂ (5 km by car equivalent) |
| Standard EU host | ~5 kg CO₂ |
| AWS US | ~15 kg CO₂ |
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