Electric Commercial Lawn Mowers

Aaron Katzenstein

Planning and Rules

Commercial Mowers Background • Long lifetime

• Daily usage

• Heavy fuel consumers

AQMD Residential Lawn Mower Exchange

• Exchange gas mower for battery operated electric at reduced cost

• To date 47,000 mowers exchanged

• Mowers not suitable for commercial operation

Lawn and Garden Equipment Emissions - Contribution to Offroad Category

% C

on

trib

uti

on

to

Off

road

Cat

ego

ry

Pollutant

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

VOC NOx CO PM25

2008

2014

2019

Lawn and Garden Equipment Emissions - Contribution to South Coast Inventory

0.0%

2.0%

4.0%

6.0%

8.0%

10.0%

12.0%

14.0%

16.0%

18.0%

VOC NOx CO PM25

2008

2014

2019

% C

on

trib

uti

on

to

Ove

rall

Inve

nto

ry

Pollutant

Commercial Mower Categories

Commercial Turf

Rear Engine Rider

Front Mowers

South Coast Basin Mower Population* Commercial Residential

* 2010 estimates from Offroad Model

Front Mowers 173,262

Lawn & Garden Tractors 108,870

Lawn Mowers

2,049,934

Rear Engine Riding

Mowers 57,754

Front Mowers

5,358

Lawn & Garden Tractors 34,313

Lawn Mowers 139,952

Rear Engine Riding

Mowers 65,857

Commercial Turf

Equipment 12,796

0

4000

8000

12000

16000

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Enging Riding

Mowers

Commercial Turf

Equipment

CO

PM

NOX

VOC Evap

VOC Exhaust

0

4000

8000

12000

16000

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Engine Riding

Mowers

CO

PM

NOX

VOC Evap

VOG Exhaust

Residential

Commercial

Emissions tons/year

Emissions tons/year

0 200 400 600 800

1000 1200 1400 1600 1800 2000

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Engine Riding

Mowers

PM

NOX

VOC Evap

VOG Exhaust

0

200

400

600

800

1000

1200

1400

1600

1800

2000

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Enging Riding

Mowers

Commercial Turf

Equipment

PM

NOX

VOC Evap

VOC Exhaust

Commercial

Residential

Emissions per unit tons/year

0

0.01

0.02

0.03

0.04

0.05

0.06

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Engine Riding

Mowers

CO

PM

NOX

VOC Evap

VOG Exhaust

0

0.2

0.4

0.6

0.8

1

1.2

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Enging Riding

Mowers

Commercial Turf

Equipment

CO

PM

NOX

VOC Evap

VOC Exhaust

Commercial

Residential

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Enging Riding

Mowers

Commercial Turf

Equipment

PM

NOX

VOC Evap

VOC Exhaust

0

0.0005

0.001

0.0015

0.002

0.0025

0.003

Front Mowers

Lawn & Garden Tractors

Lawn Mowers

Rear Engine Riding

Mowers

PM

NOX

VOC Evap

VOG Exhaust

Emissions per unit tons/year

Commercial

Residential

Current Market for Commercial Electric

• One Product

– Yard Hustler Zeon Mower (replaces 15 to 25 hp)

• 42” cutting width

• 1.5 to 2 hour run time (standard lead acid)

• Additional battery configurations can extend runtime

Advantages

• Reduced energy costs

• Quieter operation – 98 dBA electric vs. 103 dBA Gasoline

• Reduced Maintenance

Disadvantages

• Run time

• Charging time

• Battery costs

Electric Commercial Mower Advantages/Disadvantages

Next steps

• Further review of usage and emissions

• Review potential for going electric in larger width commercial mower – Run times (battery technologies)

– Charging times

– Costs

• Better understand cost effectiveness (emissions and fuel savings)

• Possible demonstration project/ incentives