Renewable Energy Generation
Achieve net-zero facilities and GHG reduction goals by:
• Geothermal Energy
Systems
• Photovoltaic Systems
• Biomass Systems
• Landfill Gas
Microturbines
• Wind Turbines
• Solar Water Heaters
• Concentrated Solar
Power
• Methane Recovery
Systems
•
•
•
•
Renewable Energy –Pain or Gain?
Transmission loss is #1 source of energy
inefficiency
Tremendous opportunities exist for
increased energy efficiency when
generation and use are well matched
Power failures (blackouts, brownouts)
create inefficiency and undermine mission
Trigeneration and other efficiency/
renewable power solutions can
address these and other
issues with demonstrable
ROI
Innovations in Energy Analysis
Using a Second Law Approach to Energy Savings
FIRST LAW OF THERMODYNAMICS
•Law of energy quantity
•Focus on energy conservation
•Ignores quality losses
SECOND LAW OF THERMODYNAMICS
•Law of energy quality
•Focus on energy quality loss as opportunity for energy savings
•We use MCDA to account for stakeholder priorities/preferences
THE SCIENCE OF DECISION MAKING
•Methodical analysis
•Supports the development of planning and
programming requirements
Net Zero Installation
Proposed Definition
A net zero installation is one which applies an integrated
approach to management of energy, water, and waste to
capture and commercialize the resource value and/or
enhance the ecological productivity of land, water, and air.
Its key attributes are:
–A fundamental shift towards cyclical handling of resources,
virtually eliminating the concept of waste.
–Ecologically derived design method to systematically support
resource recovery by synergistically combining outputs and
inputs.
–Operates through breaking down “stovepipes” of assessment
and design decision-making rather than following traditional
approaches based on single technical discipline problem solving.
– Focus on capturing value, not minimizing initial
cost, through effective inter-disciplinary
project teams.
Net Zero Installation Concept
Integrated Sustainability
Themes
REGIONAL AND
COMMUNITY
SCALE
SOCIETY
POLICY
QUALITY OF LIFE
EDUCATION
3
AGRICULTURE
TRANSPORTATION
ECONOMICS
Relationship between the 13 Themes
INSTALLATION
SCALE
BUILDING
SCALE
District Energy Sharing System Schematic
DISTRICT ENERGY SHARING & WATER RECOVERY
Modern Building Challenge
Modern buildings attempt to
balance their own heating and
cooling demands to reduce the
energy required to heat and cool
the building.
DISTRICT ENERGY SHARING & WATER RECOVERY
Using the Energy Imbalance
Energy sharing for communities
with:
• 45% residential
• 30% office
• 25% retail
Can supply 25% to 34% of the
total thermal energy
District Energy and Water Sharing
balances the heating and cooling
demands of an entire community to
reduce the energy and water
required to meet the needs of the
community.
DISTRICT ENERGY SHARING & WATER RECOVERY
Reducing Energy Consumption
50% of peak heating/cooling
provides 90% of annual energy
60% of a building's energy
consumption is heating & cooling
Heat recovery and alternative high
or low grade thermal energy sources
are used to store or provide the net
energy demand.
DISTRICT ENERGY SHARING & WATER RECOVERY
Enabling Alternative
Energy
Reduction in energy demand
maximizes feasibility of other
alternative energy sources
Net Zero Hierarchy
Reduction
Re-Purpose
Recycling &
Composting
Recovery
Disposal
Net Zero Installation Concept
QUESTIONS?
2011 ADC WINTER FORUM | PAGE 19