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Legend Power - Effects of Voltage Optimziation

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Legend Power - Effects of Voltage Optimziation

  1. 1. Effects
Of
Voltage
 Op0miza0on
  2. 2. Presenta0on
Outline 1. Legend
Power
Introduc0on 2. What
is
Voltage
Op0miza0on • Conserva0on
Voltage
Regula0on 3. Electrical
Harmonizer‐AVR
Technology 4. Effects
On
Ligh0ng
Loads 5. Effects
On
Motor
Loads 6. Facility
Audit 7. Measurement
&
Verifica0on 8. Case
Study
–
Honda
Canada 9. Conclusion
  3. 3. Legend
Power Introduc0on • Legend
Power
is
Energy
Conserva0on
 Company • Target
Commercial
&
Light
Industrial • Completed
R&D
in
January
2009 • Completed
20+
pilot
project
in
BC,
Ontario
 and
California • Dr.
William
Dunford
–
CTO
and
inventor
of
the
 AVR • Mark
Petersen
–
P.Eng,
Lead
Engineer
  4. 4. Energy
Waste
From
High
Voltage • U0li0es
cannot
effec0vely
regulate
voltage
on
the
en0re
grid
 • Some
buildings
receive
voltage
at
higher
levels
than
others • High
voltage
results
in: – 
energy
waste – 
larger
energy
bills – unnecessary
GHG
emissions 126
Volts Electrical
Harmonizer
 118
Volts ‐
AVR Power
 Power
 Voltage
 Genera6on Distribu6on Op6miza6on Customer
  5. 5. What
is
Voltage
Op0miza0on Conserva0on
Voltage
Regula0on • Due
to
line
loss
resistance
building
receive
higher
voltage
at
 the
beginning
of
the
electrical
grid • Voltage
Op0miza0on
or
Conserva0on
Voltage
Regula0on,
 regulates
incoming
voltage
to
the
lower
op0mal
level 126
Volts 114
Volts
  6. 6. What
is
Voltage
Op0miza0on Conserva0on
Voltage
Regula0on • All
Electrical
Equipment
is
design
to
operate
 +/‐
5%
of
rated
value • Voltage
op0miza0on
ensures
equipment
is
opera0ng
 near
the
lower
limit
 • Reduce
Energy
Consump0on
by
6‐10% • Real
Power
Reduc0on
‐
kW • Reac0ve
Power
Reduc0on
KVar
 • Energy
Consump0on
Reduc0on
kWh • Increase
the
life
of
Electrical
Equipment • Science
World
doubled
life
expectancy
of
exterior
bulbs
  7. 7. Electrical
Harmonizer‐AVR
Technology Harmonizer • Harmonizer
=
Autotransformer – 2%,
4%,
6%
taps – 99.98%
Efficient • Can
be
installed
before
the
 meter – 30
Year
life
expectancy – 300,000
installed
in
Japan
  8. 8. Electrical
Harmonizer‐AVR
Technology Automa0c
Voltage
Regulator • AVR
–
Automa0c
Voltage
Regulator – Electronic
Tap
Selector – U0lizes
zero
crossing
detec0on
to
minimize
transients • Reduces
harmonic
content – Rated
for
1000
Amps
@
600
Volts – Includes
failsafe
bypass
to
ensure
uninterrupted
power
to
 load
  9. 9. Effects
on
Resis0ve
Loads • Hea0ng
and
Ligh0ng
Loads • Average
power
can
easily
be
controlled
via
the
 voltage,
irrespec0ve
of
the
waveform
 • Instantaneous
electrical
power
consump0on
=
voltage
 squared • Resistor
temperature
changes
slower
than
voltage

 • Hea0ng
Loads • Many
are
thermosta0cally
controlled • Peak
power
will
be
reduced • Average
power
will
remain
unchanged
  10. 10. Effects
on
Resis0ve
Loads Ligh0ng
Loads • Responsive
Ligh0ng
Loads: • Incandescent • T8
and
T12
Fluorescent • Compact
Fluorescent • Metal
Halide • High
Pressure
Sodium • Front
End
Regulated
Ballast • Electronically
regulated
loads
do
not
respond
to
voltage
 op0miza0on
  11. 11. Effects
on
Motor
Loads • Real
power
‐
kW • Mechanical
output • iron
and
copper
losses
 • Reac0ve
power
drawn
to
maintain
the
 magne0c
flux
‐
kVar • Power
factor • Harmonics • Effects
of
voltage
op0miza0on
is
complex

  12. 12. Effects
on
Motor
Loads • Nameplate
condi0ons
do
not
represent
the
 most
efficient
point
for
motor
opera0on
 • higher
voltage
results
in: • Increased
reac0ve
power
demand
 • Increased
harmonic
current
flow.
 • Increased
losses
in
the
iron
core • Overall
motor
efficiency
and
power
factor
are
 usually
increased
by
reducing
the
motor
 voltage
to
its
rated
value
or
below

  13. 13. Facility
Audit 1. Billing
Review 2. Facility
Walkthrough 3. Voltage
Op0miza0on
 Simula0on 4. Power
Quality
Analysis 5. Proposal
Delivery
  14. 14. Installa0on
&
Commissioning • Typically
one
day
to
rough
in
and
install • Less
than
three
hours
of
down0me • AVR
can
be
hot
swapped
to
avoid
down0me
during
 any
required
maintenance
  15. 15. Measurement
&
Verifica0on • Instantaneous
effects
of
voltage
change
can
easily
be
 measured • Sooware
installed
in
the
AVR
forces
a
tap
change • executed
every
30
minutes
for
one
week • 48
samples
per
day
for
one
week

 • Measurements
are
taken
before
and
aoer
each
tap
change • kWh
for
the
week
determined
by
summing
the
30
 minute
samples
which
will
yield
the
actual
kWh
used
 and
the
kWh
which
would
have
been
used
without
 the
AVR

  16. 16. Case
Study
 Honda
Canada Facility
Profile Results • 45%
Ligh0ng • Annual
kWh
Savings:
76,271 • Average
kW
Reduc0on:
8.73
 • 40%
Motor
&
HVAC
 • Percent
Savings:
5.98% • 10%
Office
Equipment • Annual
Dollar
Savings:
$4,400
($8,800
Ontario) • 5%
Bapery
Chargers • Op0mized
Voltage
:
575
Volts • Average
Voltage
:
610
Volts
  17. 17. Conclusion Book
An
Audit:
 If
you
think
your
facility
might
be
a
good
 candidate,
we
can
help
you
do
some
of
the
 preliminary
inves0ga0ons. Book
Now:
 www.legendpower.com/energy‐audit/

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