Power Quality
and
Energy
Efficiency
Services
CPI ENERGY PHILS., INC.
An Energy Service Company
39 San Miguel Avenue, 17th Floor
One Magnificent Mile Building, Ortigas Center
Pasig City 1605, Metro Manila, Philippines
Tel. +63 2 6352692 * Fax +63 2 6352693
www.cpi-energy.com
Our Company
“ADB’s” National Technical Expert on the Promotion of
Renewable Energy, Energy Efficiency and Greenhouse Gas
Abatement (PREGA) Project.”
Our
COMMITMENT
is
to
GUARANTEE SAVINGS as we
provide turn-key solutions for
“TOTAL POWER QUALITY” and
“ENERGY EFFICIENCY.”
Advantages:
1. Identify, characterize and solve power quality
(PQ) problems with precision.
2. Maximize energy utilization.
3. We use state-of-the-art equipment complying
with CLASS-A REFERENTIAL STANDARDS
(IEC 61000-4-30 and EN 50160)
4. We have expert engineers, consultants and
technical personnel.
OUR
SERVICES
1. POWER QUALITY AUDIT
POWER QUALITY AUDIT is the
study of the sources, effects and
control of disturbances which
propagate via the electric power
supply.
What is Power Quality?
Any power problem manifested in
voltage, current, or frequency
deviation that results in the failure
or mis-operation of customer
equipment.
Common PQ Problems
- Equipment Failure
- Poor Power Factor
- Drives and Motors
tripping off-line
- Transformer Overheating
- Unexplained breaker operations
- Misoperation due to utility faults
- Motor Failures
- Voltage sags
- Transient over-voltage
- Neutral ground voltage
Power Quality Disturbances
•
•
•
•
•
Voltage Regulation
Voltage Unbalance
Frequency Regulation
Flicker Severity
Harmonic Distortion
- Individual Voltage/Current Harmonic Distortion
- Total Harmonic Distortion of the Voltage (THD)
- Total Demand Distortion of the Load (TDD)
Graphical Representation of Power
Quality Disturbances
2. ENERGY AUDIT
Energy audit is an essential activity
for effective energy cost-control. It
consists of detailed evaluation of
energy consumption, technical and
economic analysis of energy facilities,
and recommendations for energy
conservation measures.
What is Energy Efficiency?
Energy efficiency is an effective
solution. It is the process of
acquiring energy savings through
proper management of energy
consumption
that
leads
to
reduction of power and energy
costs.
TYPICAL ENERGY USE FOR
BUILDINGS (based on DOE survey)
• HVAC System ------------------
62%
• Lighting -------------------------
16%
• Equipment -----------------------
5%
• Misc. ------------------------------ _ 17%
• Total ------------------------------ 100%
TYPICAL SAVINGS
SAVINGS ON TOTAL
PAYBACK PERIOD
ANNUAL ENERGY COST
(INVESTMENT ONLY)
2%
< 1 year
15%
< 3 years
INSTALL HIGH EFFICIENCY LIGHTING
5%
< 2 years
INSULATION IMPROVEMENT
8%
< 1 year
INSTALL AIR CURTAINS
7%
< 1 year
REPLACE HVAC WITH HIGHER EFFICIENCY HVAC
15%
< 7 years
POWER FACTOR CORRECTION
17%
< 1 year
INSTALL BLDG MGT SYSTEM (BMS)
20%
< 5 years
INSTALL ENERGY EFFICIENT MOTORS
INSTALL VARIABLE SPEED DRIVES
3. PQ and Energy Management
The range of services that can be provided:
•
•
•
•
•
•
•
•
Consultant and Engineer Services
Design and Integration
Project Management
Demand-Side Management (DSM)
Performance Contracting (“Paid-from-Savings”)
Monitor Project Performance & Efficiency Levels
Technology Transfer
Training and Skills’ Transfer
Technology
and
Resources
Advanced Normative Equipment
Advanced Power Quality, Disturbance & Demand Analyzer
Advanced Normative Equipment
KWhr Calibrator
PT/CT Verification
Electrical Network
PQ Management Center
230 kV
TRANSFORMER
STATION
230/138 kV
138/69 kV
SUBSTATION
69/13.8 kV/7.2kv
• Continuous monitoring of the
Fuse box
INDUSTRY
Power Quality in different voltage
levels of the electrical network
• All disturbances are captured
PQ Equipment – norm guarantee
• EN 50 160, European voltage characteristics of electricity supplied
by public distribution systems (LV, MV)
• Philippine Grid Code 69kv / 138kv /500kv
• Philippine Distribution Code
• IEC 61000-4-7, Harmonic measurements
• IEC 61000-4-15, Flicker measurements
• IEC 61000-4-30, PQ testing & measurement techniques
WHY WILL YOU
ACQUIRE ESCO
SERVICE?
Energy Services Offered by Various Types of Providers
ENERGY SERVICE
ESCO’S
VENDORS
CONTRACTORS
A&E
DESIGN/BUILD
FIRMS
CONSULTANTS
Energy Audit
X
X
X
X
Engineering Design
X
X
X
X
Equipment Installation
X
X
X
Construction & Proj. Mgt.
X
X
X
Performance Monitoring
& Verification
X
Performance Guarantees
X
Commissioning
X
X
Financing
X
X
Integrator
X
X
Source: Goldman & Dayton
X
X
X
X
Wise Investment
Proven Technology &
Expertise
One-Stop-Shop
Sustainable Energy Efficiency
CASE
STUDIES
PQ problem identified at St. Luke’s Medical Center...
Saint Luke’s Medical Center purchased and installed a 100 kVA UPS system for their Philips CT
Scan System. The CT Scan operated erratically during UPS operation. Diagnostic monitoring of
the CT Scan indicated a power problem. This dragged on for several months to the point that the
UPS was bypassed and the CT scan operated on the utility supply.
SLMC_100kva: Voltage
Between 7/11/2003 2:56:28 PM and 7/11/2003 5:21:20 PM
U1Min
U2Min
U3Min
U1Max
U2Max
U3Max
475
450
425
U[V]
400
375
350
15:00
11 Fri Jul 2003
15:30
16:00
16:30
17:00
time
Subsequent monitoring conducted confirmed that the UPS output voltage swing was more
than the CT Scan’s permitted input tolerance. According to UPS specs the output regulation is
+/- 3%. Actual test showed more than 3% and this was not acceptable to the CT Scan input.
Poor Power Factor Identified using the PQ Monitoring System…
NAIA complained that MERALCO readings
indicated low system power factor while
their meter indicated the opposite. We
evaluated the system using U902 and UP
2210.
Subsequent monitoring conducted confirmed the findings of
MERALCO. This abnormally low power factor contributed to the
high demand of the system.
Load Unbalance identified at
Veterans Memorial Medical Center…
VMMC_1: Current
Between 9/15/2003 and 9/26/2003
I1Avg
I2Avg
I3Avg
1000
750
I[A]
500
250
0
17 Wed
18 Thu
19 Fri
20 Sat
Sep 2003
21 Sun
time
22 Mon
23 Tue
24 Wed
25 Thu
26 Fri
VMMC_1: Power
Between 9/15/2003 and 9/26/2003
PTot
STot
PFTot
250000
1.00
200000
0.75
PF/DPF
150000
P[W]/S[VA]
0.50
100000
Veterans
Memorial
Medical
Center complained of high
demand charges resulting in
high electric bills.
0.25
50000
0
0.00
17 Wed
Sep 2003
18 Thu
19 Fri
20 Sat
21 Sun
time
22 Mon
23 Tue
24 Wed
25 Thu
26 Fri
Subsequent monitoring conducted confirmed
several power quality problems, notably load
unbalance.
PQ Problems identified at St. Paul Hospital in Iloilo…
Saint Paul Hospital in Iloilo encountered several unidentified problems, most of which were
blamed on the utility supplier. The frequent problems were single phasing, overheating of
transformer, abnormal operation of medical equipment, and others.
SPH_Iloilo: Voltage
Between 4/22/2003 4:31:43 PM and 4/23/2003 5:11:03 PM
250
U1Min
U2Min
U3Min
U1Max
U2Max
U3Max
240
230
U[V]
220
210
200
190
6PM
22 Tue Apr 2003
9PM
23 Wed
3AM
6AM
9AM
12PM
3PM
time
Subsequent monitoring conducted confirmed several power quality problems caused by
poor maintenance of the electrical system, abnormal operation of protection system and
system incompatibilities.
Thank You !