Make the most of your energy Head Office – Case Study

Schneider Electric 2 - Division - Name – Date Consumption Fixed Costs Studying Utility Bill

Schneider Electric 3 - Division - Name – Date Bill divided to two main Parts Consumption Fixed Costs Consumption Summary kWh Seasonal Load Analysis

Schneider Electric 4 - Division - Name – Date On 24/7 manually operated No supervision or control Installing Control System Setup operating strategy Setup an operating schedule Lighting Control Before After Offices Basement Outside Lighting saving will be around 57% from the Lighting consumption which is about 20% from total consumption monthly

Schneider Electric 5 - Division - Name – Date Lighting Effect Graph

Schneider Electric 6 - Division - Name – Date Air Cooled Chiller Air Handling Unit Fan Coil Unit CHWS CHWR Insulation CHW Pumps HVAC System

Schneider Electric 7 - Division - Name – Date Opportunities of Saving in HVAC System Chillers 2 Chillers each is 250 ton Air Handling Units 4 AHU’s with different capacities Fan Coil Units 109 FCU’s with different capacities Building Envelope Doors, infiltrations and windows Chiller Tuning Kwh Time Setpoints saving will be 14% from the consumption of the chiller and 1% from the total consumption

Schneider Electric 8 - Division - Name – Date Opportunities of Saving in HVAC System Chillers 2 Chillers each is 250 ton Air Handling Units 4 AHU’s with different capacities Fan Coil Units 109 FCU’s with different capacities Building Envelope Doors, infiltrations and windows Opportunity -we have different sizes of FCU’s each have different Capacity with a specified amount of water for each Capacity Audit action: -balancing the system by adjusting the amount of water Entering each fan Saving will be 6% from total consumption

Schneider Electric 9 - Division - Name – Date Opportunities of Saving in HVAC System Chillers 2 Chillers each is 250 ton Air Handling Units 4 AHU’s with different capacities Fan Coil Units 109 FCU’s with different capacities Building Envelope Doors, infiltrations and windows Opportunities: 1- AHU serving Training room 2- AHU serving LAB Recommendations: 1- For Training room installing 2 split units and occupancy sensors in which the payback will be with in 12 months. 2- For LAB installing occupancy sensor in which the payback Period will be a month. saving will be around 33% of the Air Handling Units Consumption and 3% from total consumption

Schneider Electric 10 - Division - Name – Date Opportunities of Saving in HVAC System Chillers 2 Chillers each is 250 ton Air Handling Units 4 AHU’s with different capacities Fan Coil Units 109 FCU’s with different capacities Building Envelope Doors, infiltrations and windows Doors: - the building had 139 doors. Infiltration: -parts of the suspended ceiling is opened. Windows: -windows subjected to direct sunlight with no curtains gain a lot of heat. All the above lead’s to reach the setpoint due to heat loss which make the system run in it’s maximum capacity

Schneider Electric 11 - Division - Name – Date Bill divided to two main Parts Consumption Fixed Costs Recommendations -Peak shaving using PLC with BMS and it’s payback will be in a month Zero KW Saving will be 6% from the average monthly bill

Schneider Electric 12 - Division - Name – Date Action Winter savings Summer savings Investments (EGP) Expected Payback years Date to execute Web energy expanding -- 20,000-Nov 09 Lighting20%10.5%1500Nov 09 Total for lighting15 %21,5008 months AHU’s-3%10,000Dec 09 Chiller-6%2,000 Building Envelope (windows + doors) -- 24,000Oct 09 Total for HVAC5 %36,0002 years taxes3%2%-- Fixed Costs15%1.5%2,5002 monthDec 09 Saving summary in bills & ROI investment calculations