Adds SolarThermalSystem performance elements

[shorowit]

Adds rated performance values for SolarThermalSystems based on SRCC.

For solar thermal collector ratings (OG-100):

• CollectorRatedOpticalEfficiency: Often referred to as Fr-tau-alpha (FRta), this describes the optical efficiency portion of the overall collector efficiency. In the OG-100 SRCC Certified Solar Thermal Collector Directory, this is the y-intercept of the efficiency curve.
• CollectorRatedThermalLosses: Often referred to as Fr-Ul (FRUl), this describes the collector thermal losses portion of the overall collector efficiency. In the OG-100 SRCC Certified Solar Thermal Collector Directory, this is the slope of the efficiency curve.

For solar water heating system ratings (OG-300):

• SolarFraction: The Solar Fraction is the portion of the total conventional hot water heating load (delivered energy and tank standby losses). The higher the solar fraction, the greater the solar contribution to water heating, which reduces the energy required by the backup water heater. This value can be found in the OG-300 SRCC Certified Solar Water Heating System Directory.
• SolarEnergyFactor: The Solar Energy Factor is defined as the energy delivered by the system divided by the electrical or gas energy put into the system. The higher the number, the more energy efficient. This value can be found in the OG-300 SRCC Certified Solar Water Heating System Directory

[DebraLittle]

Hi Scott Thanks for your good work! Please explain - FRta and FRUl) based on SRCC Debra Little Home Performance and Valuation Specialist CA Certified Appraiser Efficiency First CA Board Member 530 320-2107 www.AjO.earth <http://www.AjOhp.org>

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On Fri, Jun 14, 2019 at 12:19 PM Scott Horowitz ***@***.***> wrote: Work in progress. Adds rated efficiency values (FRta and FRUl) based on SRCC. ------------------------------ You can view, comment on, or merge this pull request online at: #185 Commit Summary - Adds FRta and FRUl rated performance elements. File Changes - *M* schemas/BaseElements.xsd <https://github.com/hpxmlwg/hpxml/pull/185/files#diff-0> (21) Patch Links: - https://github.com/hpxmlwg/hpxml/pull/185.patch - https://github.com/hpxmlwg/hpxml/pull/185.diff — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#185?email_source=notifications&email_token=ADT7I66WAS7EI6SEUTPTY7LP2PVNHA5CNFSM4HYMPV62YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4GZUCMEA>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADT7I654KA7JOODEVCKNIYTP2PVNHANCNFSM4HYMPV6Q> .

[shorowit]

Hi Debra, sorry for the shorthand. I've updated the description above. Let me know if you still have questions.