Energy Efficient Dairy
Production Technologies
Mission: We connect individuals and their communities
to the resources they need to identify and implement
community-based clean energy projects
CERTs:
Minnesotans Building a
Clean Energy Future
Energy Efficient Dairy
Production Technologies
Milk
Harvesting
Milk
Cooling
Cow
Comfort
VFD on Vacuum Pump
 Able to ramp the motor speed up and down to
match the actual vacuum level needed
 Usually replace a single-phase motor
with a three-phase motor
 You can de-rate a VFD for single-phase
motor
 Approx Cost: $7,000
 Payback ranges: 6 to 26 yrs
VFD on Vacuum Pump
VFD on Milk Pump
 Able to ramp motor speed up and down
to match vacuum level
 Used in combination with a plate cooler
for additional milk cooling
 Approx Cost: $3,600
 Payback: 3.6 to 11
VFD on Milk Pump
Plate Cooler (Pre-Cooler)
9 Uses cold well water to pre-cool the milk
before entering refrigeration system
 Reduces heat refrig system has to remove
 Approx Cost: $3,600
 Payback: 5-6 years
Plate Cooler (Pre-Cooler)
Scroll Compressors
 Newer type of compressor. 15-20% more
efficient
 Fewer moving parts
 Digital or variable lobe reciprocating
 Approx Cost: $3,200
 Payback: 8-9 years
Scroll Compressors
Refrigeration Heat Recovery
for Water Heating
 Used to capture waste heat from
refrigerant
 Increases life of water heater
 Increases compressor efficiency
 Approx Cost: $3,100
 Payback: 9.6 years
Refrigeration Heat Recovery
for Water Heating
High Volume Low Speed Fans
 BIG fans with VFD and temp
sensors
 Down draft to keep cows cool
 Approx Cost: $5,000 installed.
 Payback: Varies
High Volume Low Speed Fans
 Efficient fans with VFD and
temp sensors
 Maintenance
 Approx Cost: $3,500
 Payback: Depends!
Circulation Fans with VFDs
 Better insulation prevents freezing and
avoids heating
 Must be properly installed – out of wind,
12” heat tube above frost line…
 Approx Cost: $1,300
 Payback: 2-5 yrs depending on condition
of old waterers.
Low/No-Energy Waterers
 Replacement of metal halides,
incandescent or high pressure sodium
lamps for T-8s, CFLs, or LEDs
 Approx Cost: Varies $1500-$2500
 Payback: 2.2
Energy Efficient Lighting

Energy Efficient Dairy Production Technologies

  • 1.
  • 2.
    Mission: We connectindividuals and their communities to the resources they need to identify and implement community-based clean energy projects CERTs: Minnesotans Building a Clean Energy Future
  • 3.
    Energy Efficient Dairy ProductionTechnologies Milk Harvesting Milk Cooling Cow Comfort
  • 4.
  • 5.
     Able toramp the motor speed up and down to match the actual vacuum level needed  Usually replace a single-phase motor with a three-phase motor  You can de-rate a VFD for single-phase motor  Approx Cost: $7,000  Payback ranges: 6 to 26 yrs VFD on Vacuum Pump
  • 6.
  • 7.
     Able toramp motor speed up and down to match vacuum level  Used in combination with a plate cooler for additional milk cooling  Approx Cost: $3,600  Payback: 3.6 to 11 VFD on Milk Pump
  • 8.
  • 9.
    9 Uses coldwell water to pre-cool the milk before entering refrigeration system  Reduces heat refrig system has to remove  Approx Cost: $3,600  Payback: 5-6 years Plate Cooler (Pre-Cooler)
  • 10.
  • 11.
     Newer typeof compressor. 15-20% more efficient  Fewer moving parts  Digital or variable lobe reciprocating  Approx Cost: $3,200  Payback: 8-9 years Scroll Compressors
  • 12.
  • 13.
     Used tocapture waste heat from refrigerant  Increases life of water heater  Increases compressor efficiency  Approx Cost: $3,100  Payback: 9.6 years Refrigeration Heat Recovery for Water Heating
  • 14.
    High Volume LowSpeed Fans
  • 15.
     BIG fanswith VFD and temp sensors  Down draft to keep cows cool  Approx Cost: $5,000 installed.  Payback: Varies High Volume Low Speed Fans
  • 16.
     Efficient fanswith VFD and temp sensors  Maintenance  Approx Cost: $3,500  Payback: Depends! Circulation Fans with VFDs
  • 17.
     Better insulationprevents freezing and avoids heating  Must be properly installed – out of wind, 12” heat tube above frost line…  Approx Cost: $1,300  Payback: 2-5 yrs depending on condition of old waterers. Low/No-Energy Waterers
  • 18.
     Replacement ofmetal halides, incandescent or high pressure sodium lamps for T-8s, CFLs, or LEDs  Approx Cost: Varies $1500-$2500  Payback: 2.2 Energy Efficient Lighting