4. Temperature & Humidity SLA
The Hydro66 data center will aim to maintain the environment year-round within the ASHRAE Recommended envelope (according to the Thermal Guidelines for Data Processing Environments Fourth Edition), and can provide an SLA in line with Class A2 of the above. Full cold aisle containment is in place to maintain a 100% SLA to supply air at 18-27 deg Celsius.
5. Environment Footprint
Hydro66 uses 90% less energy on operational overheads than the average EU data center with a PUE of 1.07 compared to EU average PUE 1.7. In addition, Hydro66 exclusively use locally generated hydropower which releases 0.04g CO2 per kWh compared to the EU average of 296g CO2 per kWh generated. Combining these values means that Hydro66 releases 11,700 times less CO2 per KW of IT load than hosting in the average EU data center. A 10 kW rack hosted by Hydro66 releases 3.75 kg of CO2 annually compared to 44 tonnes of CO2 for the same 10 kW rack hosted in the average EU data center.
‘WUE’ or ‘Water Usage Effectiveness measures how many liters of water a data center consumes to cool down each kWh of IT load. Traditional data centers use around 1.8 L of water per kWh. Direct free-air cooling systems such as used by Hydro66 use 0.08 L per kWh or 22 times less than average. Fossil and nuclear electricity generation consume massive amounts of water – an average of 7.6 liters per kWh. Hydroelectric generation consumes 0.26 L per kWh, or around 30 times less than other sources. Hydro66 combines direct free air cooling and hydropower to maximise WUE and uses 25 times less water than the average data center.
PUE = 1.07. Please note that Hydro66 do not charge clients for PUE overhead. Because of the ultra low PUE, Hydro66 do not provide a PUE SLA as they are already financially incentivized to minimise it for all parties. PUE figures do not capture the energy losses associated with long distance High Voltage transmission. Hydro66 use energy directly at the point of generation and therefore avoid the additional transmission losses of between 5 and 10% suffered by urban data centers.