HUD Phoenix Energy Workshop September 16-17, 2008

1. HUD Workshop:
Capacity Building
Solar Electric Technologies
Photovoltaics (PV)
Sandra Begay-Campbell
Sandia National Laboratories
Principal Member of the Technical Staff
Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin
Company, for the United States Department of Energy’s National Nuclear Security
Administration under contract DE-AC-04-94AL85000.

2. Building-Integrated PV
(BIPV)
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3. PV Solar Resource
Flat Plate, Facing South, Latitude Tilt
Data and maps from the Renewable Resources Data Center
at the National Renewable Energy Laboratory
http://www.nrel.gov/gis/solar.html#collector
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4. Simple Direct Drive PV System
Graphics from the National Renewable Energy Laboratory
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5. Simple DC PV System
with Battery Storage
Graphics from the National Renewable Energy Laboratory
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6. AC PV System with Inverter
Graphics from the National Renewable Energy Laboratory
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7. Utility-Connected (Grid-Tied)
Utility-Connected (Grid-Tied)
PV System
Graphics from the National Renewable Energy Laboratory
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8. Hybrid PV/Generator System
Graphics from the National Renewable Energy Laboratory
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9. Simple PV house system
System
• Array
• Inverter
• Utility Interface/Control
• Meters
• Storage batteries (optional)
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10. A process of technology
implementation
A process of technology implementation over several housing
development projects is recommended.
Each set of recommendations are ranked from very cost efficient
approaches to conventional technology demonstrations to advanced
technology demonstrations.
It is understood that additional funding will be needed for first cost of
many technologies and energy efficient features.
The model process developed would provide a progression of lessons
learned which have been implemented by Sandia’s military customers.
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11. Energy load (demand) reduction
Specific features are recommended for energy use reduction:
• Programmable thermostats
R-38 attic insulation
R-19 exterior insulation
• High-efficiency compact fluorescent lighting
• Basic Clothes Line
• White (or as close to white) roofing with 3-foot overhangs
• High-efficiency refrigerator and Energy STAR rated appliances
• Advanced solar control double glazed windows
• Downsized SEER 15.0, variable speed, & 2-ton air conditioner
with field-verified cooling-coil airflow.
• OR High efficiency swamp cooler, such as a Master COOL
evaporative unit
• Solar hot-water systems
• Photovoltaic (PV) systems
Based on the existing HUD standard for cost per home & infrastructure cost
allocation, many of these features may not be included in existing budgets.
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12. Training for the new homeowners
is also recommended
These model homes should be implemented for
energy use monitoring.
• One or two homes would feature the latest
techniques recommended and the other would serve
as the conventional home.
• The goal would be how much energy could be
saved without factoring in the cost of the energy
efficiency features.
• A close match of home owner and energy use
between the zero energy home(s) and conventional
home should be implemented.
The monitoring and analysis be used to demonstrate the use of these zero
energy features to HUD homeowners & other constituents.
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13. Training for the new homeowners
is also recommended
Along with other training provided,
new homeowner training should
include:
• energy conservation
• peak energy management
• energy use based on energy
interdependencies (mini-grid
system which could include
metering)
Information and training would provide a progression of lessons learned, not
only for the homeowner, but for other constituencies.
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14. Federal renewable energy grants
DOE Renewable Energy Development
on Tribal Lands
• Competitive solicitation depending on
congressional appropriations
• Sandia technical assistance is provided to the
awardees
USDA Rural Utility Service – Rural
Business Development
• New grant to assist farmers, ranchers, & small
rural businesses in
• buying renewable energy systems
• making energy efficiency improvements
Sandia is interested in a long-range process of technology implementation for
managing life-cycle cost to meet tribal housing needs
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15. Sandia’s technical assistance to
tribes
As part of the TEP team, Sandia’s activities
and responsibilities include the
following:
• Program technical support
• Project-specific technical support
• Capacity building in Indian Country
• Publications and outreach
• Student Internship
Specific support as requested by the tribes
(grantees):
• Ramona Band of Cahuilla
• Hualapai Nation
Sandia field visit to Hualapai Earth Ship • Navajo Nation
facility with interns • Hopi Nation
• Laguna Pueblo
Tribal Energy Projects are showcased at the annual DOE TEP
Project Review, November 17 – 20, 2008, Denver, CO
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16. Navajo Nation Residential PV
Navajo Tribal Utility Authority
..1993…………..1999-2001………….….2002-2003………….……2003-2004……
Phase II 880 Watt Hybrid
240-260 Watt
Phase I 880 Watt Hybrid
640 Watt
Economic
Development:
Units
Standardization assembled on
Business potential achieved Navajo Nation
Battery bank powered
realized
by hybrid design 16