Canvas Building Energy Survey Checklist Mobile App The Building Energy Survey Checklist mobile app is a tool used to measure compliance with “Energy Conservation,” “Conservation of Energy,” and the Best Practices for Energy & Resource Conservation Handbook. Inspections will be performed not less than twice per year. The app inspects: Lighting, Equipment, HVAC, Building Envelope, Water, Exterior and notes preventative maintenance or budget related items. Canvas allows you to attach photos to your app.