Hello all, We are attempting to model a cogen system (using gas to create electricity and using waste heat for domestic water heating). My questions are as follows: 1.

We have project using district steam. We use DES v2 to calculate the virtual rate based on state averaged electricity (0.084$/kWh) and gas (0.00757$/MBTU).

Hi ! According to building envelope compliance documentation Part I, revolvning doors should have air leakage less than 1,0 cfm/ft2. A manufacturer of revolving doors informed me that all revolvin

The project seeking LEED certification includes air-to-water heat pumps (4-pipe), that are able to produce hot and chilled water (simultaneously or separetly).

I am trying to select the baseline cooling system of a food industry.

I’m modeling a project where there is an external basketball court, which is illuminated. I’m considering Table 9.4.5 “Lighting power densities for building exteriors” for the baseline model.

Hi, I'm doing a LEED certification and I have a three floors office building, with three underground floors for parking purposes only. These three underground floors have NO HVAC system, they are

Hello everyone, I'm working on a project where an existing building is being renovated but there is also a smaller new addition extending the building.

Can anyone please clarify if packaged air-to-water heat pumps (chilled and/or hot water production) have to: 1) comply with minimum efficiency requirements set to for water chilling packages in coo

I recently noticed LEED Reference Guide for EAc1 Example Option 1 (p278) says we need to redistribute the window to wall ratio uniformally on each orientation of the building.