Power Quality
- Frequent tripping in electrical grid
- Failure of capacitor banks
- Flickering and failure of lighting fixtures
- Interrupted operation of lifts/elevators
- Overloading and burning of neutral conductor
- High Energy Costs
Building Thermal Efficiency
- Insufficient cooling
- Heat pockets in lobby area
- stratified cooling
HVAC Efficiency
- Fresh Air Supply- Insufficient – Energetically inefficient without Heat Recovery units
- Insufficient cooling
- Excessive humidity
- Odour & mould
Lighting- Conventional vs. LEDs
- High operating cost due to higher consumption of electricity by Halogens Higher replacement costs due to shorter lifespan
- Higher replacement costs due to shorter lifespan
- High thermal impact on cooling
Indoor Air Quality
- High Humidity
- High temperatures
- Odor-Food/smoke/mould
- Mould
- Smoke
- Dust/VOC’s/CO2
Power Quality
- High harmonic distortion generated by large chiller units, lifts/elevators and lighting loads
- 5th & 7th Harmonics, resonances and transients leading to irreparable damage to the capacitor banks
- Old technology of capacitor banks which are contactor switching and not suitable for today’s loads
- Fluctuating load profile and sudden reactive jerks of lifts/elevators
- Over voltage
Building Thermal Efficiency
- High exposure to sunlight due to extensive use of glass facades,
- Insufficient thermal insulation of windows, doors & roofs
- Over burden on HVAC
- Comfort issues due to heat
HVAC Efficiency
- Incorrect choice of the chiller plant- this may be due to incorrect sizing or incorrect technology
- Poor Maintenance of chiller plants
- High Humidity
- Incorrect configuration
- Imbalance in air pressure
- High ambient temperature
Lighting- Conventional vs. LEDs
- Old technology of conventional lightings
- Inadequate light output
- Significant light depreciation within 6-9 months of installation
Indoor Air Quality
- Lack of dehumidification
- Lack of cooling/ insulation
- Lack of indoor air treatment
- Excess use of solvents in the form of air fresheners, detergents, cleaning sprays etc.
- Lack of indoor air filtration
Power Quality
- Active Harmonic Filter with Neutral Compensator when neutral current is high
- Active Harmonic Filter at major non-linear loads
- Dynamic power factor correction with detuned filter reactor with ZERO crossing
- Hybrid Filter suitable when power factor is low
- Voltage optimizers
Building Thermal Efficiency
- Cool window films
- Cool roof coatings
- Arresting leakage of hot air from doors
HVAC Efficiency
- Yearly audit and maintenance of HVAC and proper configuration of chiller plant.
- Refurbish existing Heat Recovery units by chemical cleaning of Heat Wheels, Enthalpy Wheel or Desiccant Wheel
- Additional upgrade of HRU with Horse Shoe Heat Pipe or Desiccant Dehumidification
- Consider advance air distribution technologies such as Bosch Clemotion or Composite air ducts.
- Chiller replacement for highest energy savings and lowest cost of ownership – Heat Pump -Water cooled chiller -Invertor based chiller
- Shading of chiller plant and Wet wall
- Replace Hydrazine with Polyamines
Lighting- Conventional vs. LEDs
- Replacement by LED with following specs: -160 lumens/watt -less than 10% depreciation in light output over the expected life of 5 years – TL-21 certified – LM 79 and LM-80 compliant
Indoor Air Quality
- Heat Recovery Unit
- Horse Shoe Heat pipe
- Desiccant dehumidification
- Indoor air purification
- HEPA, Carbon filters, formaldehyde filters
- Oxygen concentrators to improve air quality
Power Quality
- Total harmonic distortion maintained within limits specified as per IEEE standard (iTDD <8%, vTHD <5%) – free from any risk of harmonic penalty (if applicable)
- High true power factor; free from any risk of low pf penalty (if applicable)
- Significant savings through elimination of lighting failures and reduced losses
- Uninterrupted operation of lifts/elevators
- Reduced neutral current and overloading of neutral conductor
- Savings in Electricity bills.
Building Thermal Efficiency
- HVAC is no more over burdened
- Wellbeing
- Window films add to the overall looks
HVAC Efficiency
- Lower cost of utilities (DEWA bills)
- Adequate cooling
- Improved life of chiller plant
- Less downtime or break downs thereby savings in maintenance costs
- Overall well being
- Safer and cost effective
Lighting- Conventional vs. LEDs
- Better light output well-being Reduction in heat load on HVAC 70-80% reduction in electricity bills Significant reduction in maintenance costs due to longer asset life
Indoor Air Quality
- Wellbeing
- Less maintenance problems
- Higher number of rooms available for rent
- Better air quality