arch 2030 presentation
DESCRIPTION
President Ravi Maniktala and Pete Jefferson's presentation on the 2030 challenge, with examples of energy efficient schools.TRANSCRIPT
Architecture 2030Meeting the Challenge
The 2030 Challenge
All new buildings, developments and major renovations shall be designed to meet a fossil fuel, GHG‐emitting, energy consumption performance standard of 50% of the regional (or country) average for that building type.
60% in 201070% in 201580% in 202090% in 2025Carbon‐neutral in 2030 (using no fossil fuel GHG emitting energy to operate).
The 2030 Challenge
These targets may be accomplished by implementing innovative sustainable design strategies, generating on‐site renewable power and/or purchasing (20% maximum) renewable energy and/or certified renewable energy credits.
The 2030 Challenge
“You’ve got to eat your energy efficiency vegetables before you can have your renewable energy dessert.” – Jeff Lyng, Colorado Governor’s Energy Office
Photo provided by NREL
The 2030 Challenge
Source: Energy Information Administration, 1995 Commercial Buildings Energy Consumption Survey
The 2030 Challenge
Innovative Design Strategies Hierarchy
Controls
Mechanical
Daylighting
Envelope
Envelope
Remember, code is the minimum allowed. It won’t get you to your goal.
Instead, start with ASHRAE’s Advanced Energy Design Guides
Use energy modeling early to determine performance goals.
Climate zones change requirements. Breckenridge is different than Denver.
Optimize window selections for orientations.
Look at new technologies. SIPs, ICFs, etc.
Daylighting
At least they can’t say they don’t have anywindows.
Daylighting
Building needs to be oriented properly.
Need to aggressively target the use of artificial lights.
Artificial lighting should be tied into daylighting, and should dim when conditions allow.
Windows need to a balance of thermal performance, solar performance, and visible light transmittance.
Direct light must be controlled!
Take advantage of the 300 days of sunshine a year in Colorado.
Christa McAuliffe E.S.
Mechanical
Efforts in envelope and daylighting should reduce mechanical systems sizes.
Look at innovative strategies: geoexchange, natural ventilation, evaporative cooling, energy recovery, chilled beams.
Integrate HVAC with occupancy sensors.
220-ton heating/cooling “plant”
Mechanical
Palmer Ridge High School, Monument, Colorado
Controls
Can improve efficiency of system, but won’t make up for lost efficiency in envelope, daylighting, or mechanical systems.Need to be flexible for future technologiesLook at systems that integrate all systems – lighting, mechanical, and schedules.
Dilemmas
Gas versus electric?Source Power: Do we design for the now (coal burning plants), or for the future (renewable energy)?
Renewable energy sources – photovoltaic, wind.Supply has gone up, but so has demand (and cost).
Limited control of the building performance after turnover. Energy Star measures actual use.
Increase the education of our building users.Include ongoing commissioning.
Christa McAuliffe Elementary
Owner: Colorado Springs District 11Architect: H+L ArchitectureMEP: M.E. Group61,000 SF elementary600 StudentsOpened August 2007
Christa McAuliffe Elementary
Controls
Mechanical
Daylighting
Envelope
R‐25 walls, R‐30 roof, Glass: U=0.29, SC=0.47,
VLT=73%
Daylight sensors, dimming systems, light
shelves, Solatubes
Geoexchange, energy recovery, VFDs
DDC, occupancy sensors, district tie‐in
McA
ullife E.S.
McA
uliffe E.S.
Christa McAuliffe Elementary
Final Thoughts
It reached the current (2008) goals of Architecture 2030.Need to monitor ongoing performance and compare to model.Projects started in the next two years will need to be even more efficient to meet the 2010 requirements.Eventually, we’ll need to include on‐site renewable energy (or purchase credits) to achieve the requirements.
Meeting the 2030 Challenge
Questions?Presented by:
Pete Jefferson, PERavi Maniktala, PE