ENERGY STAR Update: Implement ES SFNH National v3.3 & ES MFNC National v1.3

[bpark1327]

Pull Request Description

• ES SFNH National v3.3
• ES MFNC National v1.3

Checklist

Not all may apply:

• OS-HPXML git subtree has been pulled
• 301validator.xml has been updated (reference EPvalidator.xml)
• Sample files have been added/updated (openstudio tasks.rb update_hpxmls)
• Tests have been added/updated (e.g., rulesets\tests and/or workflow/tests/*_test.rb)
• Documentation has been updated
• Changelog has been updated
• openstudio tasks.rb update_measures has been run
• No unexpected changes to simulation results on CI

[shorowit]

Let's bump the ENERGY STAR version in all the real/sample files. I think that's done here and here.

Then we should compare the new ERI Targets to the previous version and make sure they make sense.

[shorowit]

Need to see if there are updated EPA tests for 3.3/1.3.

[bpark1327]

Looked at changes in the ERI score of Real Homes' ES Reference Home due to updates to ES SFNC v3.3 and MFNC v1.3. I examined two extreme cases (house015 and house077).

	old ERI	new ERI	bldg type	iecc climate zone	diff. in inputs
house015.xml	46.41	48.43	SF	5	ceiling ufactor 0.024 -> 0.026; windows ufactor 0.27->0.25; HSPF 9.2->9.5; air defect ratio -20% -> -7.5%; dishwasher 270 -> 240 kWh/yr; refrigerator 450 -> 655 kWh/yr
house077.xml	55.89	44.08	MF	6	Lighting Tier I -> Tier II; Dishwasher 270 -> 240 kWh/yr; Water Heating UEF 1.49 -> 2.5; Ventilation fan exhaust only 2.8 cfm/W -> HRV 1.2 cfm/W; airflow defect ratio -20% -> -7.5%; windows ufactor 0.27 -> 0.25; Infiltration 0.3 -> 0.27 cfm50/sqft

[bpark1327]

EPA reported that National v3.3 results in an ERI between 45 - 50 for ~70% of homes that were modeled.
Among our real home models (SF only), 51% fell within 45 - 50 range. The ERI range of the real home models is 42.5 - 58.7.

ERI Range	EPA % of Homes Modeled	NREL % of Homes Modeled (real_homes)
<45	6%	7%
45 to <50	69%	43%
50 to <55	24%	41%
≥55	0%	9%