For a LEED energy model following ASHRAE 90.1-2010 Appendix G, we're modeling a domestic solar hot water system with:
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3 flat plate collectors
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Solar storage tank
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Showers as primary end-use
Proposed Case: Modelled the actual solar thermal system
Baseline Case:
Does ASHRAE 90.1-2010 require the baseline to:
a) Include an identical solar thermal system?
b) Use a conventional system (electric/gas water heater) instead?
c) Follow some prescriptive solar requirements?
Reference to specific sections in ASHRAE 90.1-2010 would be greatly appreciated.
