Tag 'survey:date = 2021-05-12'

• 5: survey:date
• 4: natural
• 4: leaf_type
• 4: leaf_cycle
• 1: generator:method
• 1: rotor:diameter
• 1: height:hub
• 1: source
• 1: generator:type
• 1: manufacturer
• 1: generator:output:electricity
• 1: generator:source
• 1: model
• 1: power
• 1: start_date