Last year we already did a blog post on the hardware setup of DownToZero. Since then we are using the same setup for a while now and wanted to share an update.
Since we decided to purely use notebook chips, our energy consumption is significantly lower then desktop machine. Also our mode to only power the machine during times that solar power is available lead us to near zero power grid consumption.
On a per node basis we currently consume about 1.4 kWh idle per month, with our current load mix about 2kWh per month.
| Mois | Énergie consommée en kWh |
|---|---|
| septembre 2023 | 2.1 |
| octobre 2023 | 2.383 |
| novembre 2023 | 1.807 |
| décembre 2023 | 1.4 |
| janvier 2024 | 1.389 |
| février 2024 | 1.65 |
| mars 2024 | 1.528 |
| avril 2024 | 1.521 |
| mai 2024 | 1.62 |
| juin 2024 | 1.81 |
| juillet 2024 | 1.91 |
| août 2024 | 1.52 |

To give you some comparison, we added a machine with average energy consumption of about 40 watts.

We see this as confirmation that building out stack on top of mobile CPUs is worth the effort an money.