Enter existing conditions and utility data, then run the analysis. The tool generates a phased retrofit plan sequenced by best practices — envelope before HVAC before solar — with cost ranges, annual savings, occupancy impact, and applicable tax credits for each phase.
Fill in existing conditions on the left, then click "Calculate Retrofit Plan." The tool estimates your baseline energy use and the full retrofit scope.
The 3-tier plan groups improvements into three phases optimized for cash flow and occupant convenience.
The 5-tier plan breaks improvements into smaller increments for owners who want more granular phasing and budget flexibility.
Solar is sized based on post-efficiency consumption so the system is right-sized, not over-built for the pre-retrofit load.