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NC-2009 EAc2:On-Site Renewable Energy

PV energy on campus setting.

I am working on a campus project in Qatar with 3 buildings to be targeted for LEED Gold. 2 of those buildings are close to each other (Cluhouse and Academy). The third building, a training center, is further away across a huge expanse of golf course. PV panels are to be installed on the roof of the swing bays next to the Academy (450m2). It is planned to integrate the training center also into this PV energy. No cables can be used to connect the 2 buildings since the distance is too great and no PV panels can be installed in the training center due to visual considerations. However, the energy from the PV panels will be fed in to the distribuiton board (db) of the Academy which will also be shared with the training center. This db will also be connected to the main distribution board (MDB) of the clubhouse. So ideally, all 3 buildings will be able to avail of the renewable energy from PV panels installed in only one location (swing bays next to Academy). Is this a correct approach for LEED? What is required here to gain points for EAc1 and EAc2?

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 09/18/2013 - 13:44

If they are all on the same campus and owned by the same owner, then the allocation of the PV power is often just a matter of writing a letter. Does the campus have its own internal grid or is each building served separately by the utility? If it has its own grid then the allocation is pretty straight forward. If they are not part of a campus grid then it is unclear to me how the Academy and training center are connected through their distribution boards if there are no cables connecting the two buildings? Maybe you could explain to me what you are referring to as a distribution board and how the PV power would be shared.

Thu, 09/19/2013 - 07:31

Hello Marcus. Thank you for your swift reply. I asked our electrical engineer. Basically, there will be a primary substation (supplied by the KAHRAMA grid) which will be feeding the Clubhouse. From this, there will be secondary substation supplying the Academy and there will be a cable/feeder going out to the training center. So PV panels on swing bays next to the Academy which will feed into the secondary substation will also be able to supply the training center through the feeder going out.
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Thu, 09/19/2013 - 13:57

Sounds like a campus grid with the utility meter on the primary substation. In this case the owner will need to write a letter allocating whatever portion of the PV power you wish to each project.

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