Webinar Title: Landscape Equipment Sustainability Strategies
Webinar Date: March 12, 2026
Speaker: Dr. Paul Bartley, Assistant Professor, Landscape Environmental Stewardship, Department of Horticulture, Auburn University
Series: Green & Commercial
Total Prompts: 10
Coverage: 0:00 – 55:10 (full presentation duration)
These review prompts serve dual purposes: (1) they direct students to specific video segments with focused review tasks, and (2) they provide the structural scaffold for segmenting the video into Moodle course subsections.
Review Task 1
Watch: 0:00 – 6:07
Task: Identify how Bartley frames the purpose of his research and why he believes equipment transitions should be viewed as opportunities rather than threats.
Key Points to Identify:
- The “Do more with LESS” framework and its five components (energy efficiency, labor allocation, cost, emissions, noise)
- Bartley’s statement that he is “pro-gas and pro-battery” — research goal is to identify best practices, not pick sides
- The role of urbanization in increasing the importance of green spaces and landscape maintenance
Review Task 2
Watch: 6:07 – 10:30
Task: Summarize the economic scale of the landscape industry in the Southeast and list the legislative forces Bartley identifies as driving equipment change.
Key Points to Identify:
- 235,000 landscapers employed in the Southeast; $1.5 billion economic impact in Alabama alone
- COVID-19’s role in changing public perception of landscape equipment noise
- California AB 1346, noise-based municipal bans, and Georgia’s preemption bill
Review Task 3
Watch: 11:25 – 15:45
Task: Describe the Auburn Outdoor Power Equipment Consortium’s research approach and summarize the purchasing priority data from the 200-business-owner survey.
Key Points to Identify:
- OPEC’s goals: compare gas and battery tools on runtime, force output, cost, durability, noise, vibration, and safety
- Survey results: reliability, work capacity, and maintenance ranked highest; power source and pollution ranked lowest
- Company size did not predict concerns — the cluster analysis showed personality, not firm size, drove differences
Review Task 4
Watch: 15:47 – 21:08
Task: Compare the factors that led battery adopters to switch versus the barriers that kept gas users from switching. Then explain the difference between runtime and work capacity that Bartley demonstrated with string trimmers.
Key Points to Identify:
- Battery adopters cited noise pollution as the top factor; gas holdouts cited work capacity as the primary barrier
- 85% of gas users said they would switch if concerns were addressed
- Lab runtime was comparable, but field distance under load differed sharply (gas: 6,000–7,000 ft; some battery: one quarter of that)
Review Task 5
Watch: 21:08 – 27:50
Task: Explain Bartley’s fuel breakeven analysis for string trimmers and backpack blowers, and describe why recharge cycle limits compound the work capacity gap.
Key Points to Identify:
- String trimmer breakeven ranged from 31 to 385 hours of runtime depending on brand
- Backpack blower breakeven ranged from 255 to 620 hours
- Most batteries are rated below 2,000 recharge cycles; some tools need over 5,000 to match gas work output — batteries will need replacing before reaching parity
Review Task 6
Watch: 28:20 – 32:40
Task: Explain Bartley’s key points about decibel dynamics, including why a 20 dBA difference between gas and battery blowers at 50 feet represents a fourfold noise difference. Identify the specific measurements he reported.
Key Points to Identify:
- dBA is measured on a logarithmic scale — every 10 dBA increase doubles perceived loudness
- Gas Echo backpack blower: 102 dBA at operator, ~80 dBA at 50 feet; battery Husqvarna: 82 dBA at operator, 60 dBA at 50 feet
- Cumulative noise exposure from mowers and trimmers exceeds leaf blowers over a workday
Review Task 7
Watch: 32:40 – 36:54
Task: Describe the Auburn campus case study — what space was analyzed, what the capital costs were across three performance tiers, and how long it takes to reach ROI.
Key Points to Identify:
- Zone 1 (“face of campus”), maintained by a staff of 85 people, directed by Justin Sutton
- Capital cost roughly
45,000–46,000 across all three battery tiers (high, mid, low performance), because lower-performing batteries required more units - ROI at about eight years at full retail with no deals; lower capital cost accelerates breakeven
Review Task 8
Watch: 36:54 – 42:00
Task: Identify the autonomous mower partners Bartley worked with, describe his test protocol (two plot designs, four mower configurations), and explain the energy consumption findings.
Key Points to Identify:
- Greenzie (Atlanta-based retrofit company) and Doosan Bobcat (prototype autonomous mower)
- Plot 1: simple square acre; Plot 2: acre with tree rings and a T-shaped obstacle
- Autonomous mowers consumed more energy and took longer — slower turns, more overlap, lower speed; fuel-to-watt-hour conversion is nearly one-to-one
Review Task 9
Watch: 42:00 – 47:05
Task: Compare per-acre lifetime cost of manual vs. autonomous mowers and explain the dual-mower strategy. Then summarize the safety testing findings, including detection rates and the speed-accuracy trade-off.
Key Points to Identify:
- Manual mowers cheaper per acre over 3,000-hour lifespan; autonomous mower produced roughly half the acreage
- Dual-mower strategy: 55% efficiency gain, 40% labor cost reduction
- Camera-based detection: 93%; radar prototype: lower; detection degrades at higher speeds and during turns; low-profile obstacles hardest to detect
Review Task 10
Watch: 47:05 – 55:10
Task: List Bartley’s practical recommendations from the “data to decisions” section and his Q&A responses about hedge trimmers, chainsaws, and counterfeit batteries.
Key Points to Identify:
- Capital cost is the most critical ROI factor — get the best equipment at the lowest price
- Counterfeit Makita battery fire warning; charging infrastructure planning for large battery fleets
- Hedge trimmers: “10 out of 10,” first battery tool Bartley recommends; battery blowers best for “janitorial blowing” (sidewalks, curbs), not heavy leaf season
Review prompts generated for UGA Center for Urban Agriculture / GTBOP Archives
Source: Corrected SRT (Stage 1) — GTBOP_Transcript_2026-03-12_LandscapeEquipment.srt (948 blocks)
Structural reference: GTBOP_Archive_Summary_2026-03-12_LandscapeEquipment.md