For 2025, the CEC has added a new compliance metric, the Peak Cooling score that expresses peak cooling consumption of the home in kWh. This metric only applies to New Construction homes, and not to additions and alterations. Projects in Climate Zones 4 and 8-15 are subject to this new…
High DPI Scaling Issues: When the application’s scaling settings don’t align with the user’s display scaling in Windows, it can cause visual glitches or errors. Solution: To fix the behavior: Right-click the EnergyPro executable or icon and go to Properties. Select the Compatibility tab. Check “Disable fullscreen optimizations”. Click the…
This exception in the code allows any dwellings or additions that are 500 or less to use an Electric water heater. Three things need to be designated: The area of all New square footage must be 500 sqft or less. The water heater must be designated as Electric Resistance. At…
Inputs for this type of system are always done at the Plant level of the Building Tree in the DWH tab. Inputs depend upon the Occupancy you are working on. Single Family: You will input the Solar Savings Fraction for the Solar System directly. This number will come from the…
In the Central System library, begin by defining a System Type, generally it will be Split DX. Under the Heating Type select Dual Fuel Heat Pump. Input the HSPF rating as well as the AFUE rating for the Heat Pump along with the heating capacities.
Starting in EnergyPro 10.0 you will find two LSC (Longterm System Cost) scores and a Source (emissions) score when doing a compliance calculation. An LSCe score which represents the efficiency of the building design and includes all end uses with the exception of PV. An LSCt score which is the…
Your boiler efficiency indicates you are modeling a Condensing Boiler. As such the CBECC simulation requires an Entering Water Temperature of 120 F or less. Based upon the combination of Boiler Capacity, Setpoint temperature for the Boiler Loop and Flowrate for the pump, the resulting EWT is above 120 F.…
When modeling Residential Projects, you are required to include a Floor, 4 walls and a Ceiling/Roof. This zone has an incorrect Ceiling/Roof area that does not match the Floor Area of the Zone. Start by reviewing ALL surfaces in this zone, including Interior Surfaces to be sure they are input…
The current Title 24 modeling tools do not allow for cooling systems to be modeled that are 65,000 Btuh or greater. These are generally considered Large System, and have ratings that are in EER. If the system is in fact this large, you will need to model it as less…
Start by looking at Table C on the form. You will find individual columns that indicate Yes and No for specific aspects of the HVAC design. Identify which column shows No. You will find a Table Reference indicated in the Column header. Find the table further back on the form…