colleague
environmental
adult
alternative
check
clipboard
conservation
ecology
efficiency
energy
engineering
environment
expertise
female
field
generator
hard hat
industry
maintenance
man
men at work
nature
occupation
outdoors
planning
power
production
professional
project
reflective
renewable
safety
site
sky
standing
sustainable
talk
technician
technology
turbine
uniform
vest
wind
wind turbine
windmill
woman
working