Installed vs. existing ENERGY STAR appliances

Your interpretation is correct, up to a point. If you're bringing existing equipment from another office into this space, it needs to be Energy Star rated. If there is existing equipment in the space, it does not need to be counted. However, it's worth mentioning that the intent of the CI is to certify spaces that are building out for Tenant Improvement, not to certify spaces that are already occupied. You might consider whether LEED EBOM is more appropriate for your project.

The LEED addenda apply to the LEED 2009 rating systems. If you're using a pre-2009 rating system, you're only subject to the rating system errata published as of your registration date. These errata can be found on the main LEED-CI page on USGBC's site (and I think they have largely stopped being updated).The same is true for 2009 projects—you're only subject to the errata published as of your registration date. If you want to take account of an addendum published after that date, I think it's your option.

My question is CAN you include old equipment brought into the new space? The Addenda states, "Only new appliances and equipment purchased as part of the scope of work for the project need to be included". The language 'need to be' seems to imply that only new is required, but you can still include old equipment installed in the project area as originally written. My project needs to add the old equipment to get above the point threshold. I feel this is reasonable since it is still complying with the Intent to increase levels of energy efficiency. Thoughts?

Erik, I don't think you're prohibited from including old equipment, but if you DO include it, you have to include ALL of the old equipment, not just a portion of it.

Paul - You made my Friday. Thanks for the rapid response!