Electrical:
1. IC has to follow single ended type switchgear as per IFB package, provided only to upgrade the incomer breakers (from 600AT to 1200 AT) to match the new SEC substation.
2. IC/SCEC/Generator manufacturer needs to certify that the calculated size of 2500KW is capable to feed the KPSS demand load as per IFC drawing without any deviation on generator efficiency during daytime operation. 
3. Indoor Switchgear has always a DC power supply as per Saudi Aramco standard.
4. IC/SCEC needs to re-calculate the 15 KVA UPS rating and must follow the electrical load given by security and communication contractor. 
5. Patrol road lighting  and transformers were included in the bid package REQUISITION NO. 3000440288 Addendum 01 drawing # PA000095 sht 001 to 018.
6. Power System Automation is out of scope.

Mechanical:

1. If the electrical duct heater is included in the PAC unit, and requires only same temperature in all rooms duct heater can be built-in in the unit. however, if in QRT rooms it requires different temperatures independent duct heater can be provided.
2. Guard house in Wadi Khulais were mentioned and included in bid documents PE-000002 section 1.2.2.1.5