Cooling: By taking advantage of the Estonian cool nordic climate and precise cooling systems, there is no need for additional cooling systems. Cooling systems operate with low GWP (Global Warming Potential) refrigerant. There are Independent cooling modules with Chiller and Dry Coolers and reserve chilled water tanks. All CRAH (Computer Room Air Handler) units are located outside the Private Suite with AI cooling optimisation. All data halls have guaranteed uniform air velocity and cold aisle pressure controls. Currently there are 3 x 135kW CRAH (N+1) units configured with maximum flow rate 30600 m3/h per CRAH unit. Cold and hot aisle separation with monitoring and pressure control.

Electricity: Dual electrical power feed connection (2 × 110 kV AC) from Elering’s (TSO) Harku substation (which has 2 × 330 kV AC connections, 6 × 110 kV AC connections, and ESTLINK-1 DC connection with Finland).
• SIEMENS end-to-end electrical infrastructure and management system
• 2 × 110/20 kV; 31,5 MW; 50 Hz; transformers (Siemens)
• 11 × 20 kV distribution dry transformers
• 11 × 0,4 kV generator – SDMO 1650 kVA to 3500 kVA
• 2 × 100 000-liter fuel tanks with redundant fuel lines
• Redundant and modular UPS (A+B feeds) in data rooms

Networking: GDC is well connected via multiple fiber cable systems with every major internet access sites (sea cables, local IX's, other DC's) in Estonia. EstNOC OY is operating under autonomous system AS206804 (EstNOC-GLOBAL). We have redundant network with partners like Tele2 Estonia, Mediam Finland, GleSYS/Portlane Sweden, Netronik Polska, Farice Iceland, NOVA Iceland, Lumen (Level3), Hurricane Electric, SG.GS, Abovenet TW and many others. Tele2 Estonia is connected to the ultra low latency Baltic fibre network called Baltic Highway,launched in the beginning of 2014 and is also connected to Tallinn Internet Exchanges TLLiX and RTIX. Baltic Highway has been built using optical fibre laid over high-voltage electricity lines and gas pipelines belonging to the energy companies involved. This may give the network an advantage in terms of reliability: utility infrastructure is usually better protected from being accidentally dug up by construction work, which is the main cause of cable breaks. The 3000-km-long network connects Tallinn in Estonia with Frankfurt in Germany via Riga (Latvia), Vilnius (Lithuania), Warsaw (Poland) and Berlin (Germany). Onward connections to Saint Petersburg in Russia via 100G and Belarus via 10G links. The network boasts 35ms latency from end to end, capacity of 100G per channel and 9.6 Tb/s of total throughput, according to Data Logistics Center, one of the three partners in the project..

Security: Your assets are guarded 24/7/365 by on-site security guard and multilayer perimeter defence solutions, such as 2D security fencing, intelligent surveillance cameras equipped with motion sensors, thermal imaging, and forensics for fast analytics. GDC folding gate access solution and road stops are managed around the clock by security personnel. Even if someone does manage to slip past the outer perimeter, they are stopped by additional security measures, such as access-controlled doors and mantraps with multi-factor authentication, and various AI monitoring systems.