Walk-through

• Two to three pages letter format
• Recommendations with little narrative
• Does not include cost/savings/payback
• Usually no pictures

Specific System - Focused

• Letter or brief report format
  
• Extensive detail on one or more systems
  
• May or may not have pictures
  
• Usually includes cost/savings/payback

Full Facilities Audit

• Includes cost/savings/payback
  
• Billing history summaries, graphs, and charts
  
• Pictures

Grant/Financing Application Audit

• Specific to application requirements
  
• May or may not be on a "per fee" basis