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New Buildings Technical Training July 14, 2016
Agenda
• Introductions • Updates to Technical
Guidelines • Code Changes • Code Development • Open Studio and EDAPT • Program Feedback
Introductions
• Cindy Strecker – Senior Engineering Manager • Michael Crayne – Engineer • Forest Tanier-Gesner – Engineer • Cory Fulton – Engineer • Emily Rosenbloom – Technical Manager
About
• Independent nonprofit • Serving 1.5 million
customers of Portland General Electric, Pacific Power, NW Natural and Cascade Natural Gas
• Providing access to affordable energy
• Generating homegrown, renewable power
• Building a stronger Oregon and SW Washington
A clean energy power plant
548 119
average megawatts saved
aMW generated
annual therms saved 45M tons of carbon
dioxide avoided 17.4M
Enough energy to power
513,000 homes and heat
89,000 homes for a year
Technical Guidelines Introduction
• Documents technical requirements
• Relevant to Modeled Savings and Special Measures
• Technical guidelines and Oregon code
• Contact Program for alternative approach
Locating Guide
energytrust.org 1. Commercial 2. New Construction and
Major Renovations 3. Find Forms 4. Technical Guidelines
1
2 3
4
Technical Guidelines – Summary of Updates
SEED Appendix L Pre-approved
Bundled Measures
Pool Dehumidification Baseline HVAC
Technical Guidelines – Baseline HVAC
Expanded the baseline mapping to include ASHRAE Appendix G
Heating Fuel / Building Type (Table 4.8) Fossil Fuel and Purchased Heat
Electric and Other
Hybrid Systems
Residential Sys 1 – PTAC Sys 2 – PTHP Sys 1 – PTAC Non-residential, 3 floors or fewer and <25,000 sq. ft.
Sys 3 – PSZ-AC Sys 4 – PSZ-HP Sys 3 – PTZ-AC
Non-residential , 4 – 5 floors and <25,000 sq. ft. or 5 floors or fewer and 25,000 – 150,000 sq. ft.
Sys 8 – Packaged VAV with reheat
Sys 9 – Packaged VAV with PFP boxes
Sys 10 – Packaged Hybrid VAV
Non-residential and more than 5 floors or >150,000 sq. ft.
Sys 5 VAV with reheat
Sys 6 – VAV with reheat
Sys 7 – Hybrid VAV with reheat
Retail and 1 – 2 floors Sys 3 – PSZ-AC Sys 4 – PSZ-HP Sys 3 – PTZ-AC Heated-only storage Sys 11 – Heating
and ventilation Sys 12 – Heating and ventilation
Sys 11 – Heating and ventilation
Technical Guidelines – Pre-approved bundles
No Longer Available
• Envelope measures • Timeclock lighting
controls • >90% condensing tank
DHW in all applications • Showerheads <2 GPM • Air conditioning, air-
source heat pump, and water-source heat pump units
• VFDs on pumps and cooling tower fans
• Duct static pressure reduction
• Terminal fan-powered VAV boxes
• Increasing heating/cooling coil temperature differentials
• High-efficiency transformers
Technical Guidelines – Pre-approved bundles
Newly
Approved
• LPD reductions up to 60% better than code • Condensing tank DHW >94% AND in lodging,
restaurant, laundry, or residential • Showerheads <1.75 GPM • Condensing unit heaters >92% • Condensing boilers >94%
Technical Guidelines –
2014 OEESC code change
No longer one standard baseline
Model the baseline system to be the same overall type as the proposed system
Pool Dehumidification
Technical Guidelines – General Reminders
2.2.3 Avoid fuel switching fuels must match between baseline and proposed
2.3.2 Generally recognized as cost effective measures these measures can be bundled together for cost effectiveness screening
2.3.3 Measure definition (formerly referred to as “bundling”) components may be defined as one measure if they have positive savings interactions, negative cost interactions, or significant functionality interactions
2.4.2 Modeling for interactive effects projects must submit individual measure runs, as well as an interactive model with all measures
Code Changes
Code Changes
Envelope • Air leakage/air barrier
requirements Lighting/Electrical • Modified lighting power
allowance tables • Include bathrooms in sleeping
unit lighting controls
Service Hot Water • Gravity or thermosiphon
circulation loops for hot water prohibited
• Revised requirements for heat recovery on heated pools
• Pool heater efficiency requirement increased
Code Changes cont.
Mechanical • Minimum efficiency requirements • Added efficiency tables − Computer room air conditioning − Variable Refrigerant Flow systems
• Expanded pipe insulation table
Code Development
Envelope HVAC
Lighting Prescriptive packages for simple buildings
Open Studio and EDAPT
EDAPT
• Designed around OpenStudio • Automated report generation • Custom QAQC of OpenStudio
models • Contractor portal
Open Studio – Features
• Open source interface for Energy Plus
• Actively updated by NREL • Asset Score enables shoe box
modeling • Integrates with SketchUp • Parametric Analysis Tool (PAT) • Building Component Library
(BCL)
Open Studio – Building Component Library
Program Discussion
