Universal, most homeowners expect their “former” energy rennovations to be final, and can’t be expected/bothered/motivated to take the leap. High expenses and slow recoupment periods is the most cited reason for this issue.
Make it understandable and tangible to include users in decision making.
User behavior and investment, both monetary and habitual is the most limiting factor to sustainable changes in homes. Most home owners are conservatives and don’t feel the urge or need to renovate or energy optimize the building mass.
Home owners and by proxy energy providers that wish to reduce energy consumption.
We need something that will motivate/engage the user in energy saving processes and actions.
Could be tracking solution or monetization process.