Thermal audit, solar sizing and HVAC calculations run on the same project data as your quotes and materials — so the numbers you show a client match what you’ll actually install.

Not a standalone spreadsheet disconnected from the job.
Assess a building’s heat loss and insulation performance as part of the same project record.
Size a solar installation based on the project’s actual roof and energy data.
Calculate heating and cooling loads to size equipment correctly, not by rule of thumb.
Review the electrical plan alongside the rest of the project instead of as a separate document.
Material and coverage calculations that connect to the same bill of materials as the rest of the build.
The tools that used to live in separate spreadsheets.
Now part of the same project record as the quote and materials list.
Now calculated from the same project data, not re-entered by hand.
Now tied to the same project timeline and bill of materials.
Other Oprela modules that pair with this one — same subscription, same data.
Energy & Solar Tools are part of the Build vertical in Oprela.