I'm working on a project that is a small office building and is completely naturally ventilated (has only wall mounted AC units), no duct work. We use only operable windows for ventilation (...

Dear Mr. Roger Chang

I was hoping if you could provide some information on the ASHRAE 62.1 2007 standard related to "Minimum Ventilation rates in breathing zone" for Hotel room...

Hi everyone,

i am wondering if we can use the energy prices from the eia.doe.gov (US-Prices) although our project is in Europe? We don´t really understand the Site 273 of the Reference...

You're not charging enough. Way to increase the value of being a subscriber.

Hi

Is lift energy included as a process load as part of the 25% minimum requirement for process loads?

If so are there any references or guidance on how to estimate its energy...

Some of our clients' sustainable purchases (like ongoing consumables, for instance) do not have a simple payback or annual savings. Is it okay to include these items and mark the annual savings...

How does the line of thought go that balances out not using cooling towers (e.g. air cooled chillers)? Is it bad to not use a cooling tower? is it good? does it balance out in the energy points?...

Our client has installed a stormwater treatment technology that removes (per EPA testing) over 80% SSC (suspended solids concentration). Can I use SSC in lieu of...

A project we're working on is replacing some of the city sidewalk, which is outside our property line and LEED boundary. Should we include the concrete in our material calculations? Thanks,...

As per WEp1 requirement, the water use baseline is set depending on the year of substantial completion of the building indoor plumbing system. What if the "date" is unknown, doesn't show in...