Transcript NRCan’s Renewable Energy Deployment Initiative (REDI)

Overview of
Energy Efficiency & Renewable Energy
(Draft version)
Prepared by
Natural Resources Canada
in association with
Indian and Northern Affairs Canada
Natural Resources
Canada
Ressources naturelles
Canada
CANMET- EDRL
Purpose
 To provide information on Energy Efficiency (EE)
and Renewable Energy (RE) measures and
technologies
 To illustrate how EE and RE can serve community
energy needs
 To increase awareness about EE & RE technologies
how EE and RE save money
introduction of EE and RE into decision process
implementation considerations
Reasons
 Environmental
 climate change and local pollution
 Economic
 life-cycle costs
 depletion of fossil fuels
 reduced drain of $$$ from community
 Social
 employment generation
 energy independence
 security through diversification of energy supply
 contribution to sustainable development objectives
 less $ out from community
Contents
 Overview
 Renewable Energy
electricity generation
space heating and cooling
 Energy Efficiency
housing and buildings
communities
 Information Sources
Energy Demand in Canada
Industry
30%
41%
29%
Transportation
Buildings
How and Where
Energy is used
 Buildings
(lights, appliances, heating, cooling)
 Communities (waste heat, district heating)
(fishing camps, water-pumpers,
communications)
 Off-Grid
 Industry
 Transportation
Water Heat
Light/appliances
18%
21%
House
Energy Use
61%
Space Heat
Definitions
 Renewable Energy:
using non-depleting energy resources to
do the same task
 Energy Efficiency:
using less energy
resources to do the
same task
Energy Expenses in a
Remote Community
Residential
Space Heating
Other
17%
28%
Power
Generation
36%
19%
Non Residential
Space Heating
Introduction
 Common characteristics of EE and RE:
low to high initial costs
low to no operating costs
environmentally clean
no resource depletion
cost effective in many cases
reliability and longevity
Deciding on EE / RE
 Relevant factors:
local environmental considerations
economics
keeping money in community
local employment benefits
desire for energy independence
aesthetics
operational simplicity
Cost of an Energy System
 Cost effectiveness = doing things RIGHT
from the start
in new construction
in renovations
in other opportunities to upgrade
 replacing windows,
 light bulbs, etc.
Concept of life-cycle cost
Cost of an Energy System
 Cost of purchase  total cost of
system
 purchase cost
 Total cost of
+ installation cost
energy system
(life-cycle cost)
+ annual fuel costs
+ operation expenses
+ maintenance & repair costs
+ major overhaul costs
+ replacement at end of life
+ decommissioning costs
EE in Housing & Buildings
Reduce energy
consumption
for the same
level of comfort
EE in Housing & Buildings
 Introduction
55 % of energy demand is for heating in
remote communities
all communities and buildings can benefit
schools often largest energy user
applies to new and existing buildings
must respect air tightness concerns
EE in Housing & Buildings
 Factors affecting EE application
climate
building design,
construction and siting
occupancy
condition of buildings
sources of energy and
energy using equipment
EE in Housing & Buildings
 Benefits of EE
occupant comfort, health
and safety
reduced operating cost
and fuel requirements
increased building
longevity
EE in Housing & Buildings
 Energy auditing
analyzing
energy
demand
identifying
improvements
Energy Efficiency in
Existing Housing & Buildings
 Low cost measures:
lower hot water tank temperature
add insulation to water heater
install hot water flow restrictors
turn off lights
caulk/seal leaks
set-back thermostat
service/clean heating system
Energy Efficiency in
Existing Housing & Buildings
 Medium cost measures :
add insulation to basement, attic, walls, floor
upgrade windows and doors
add air-to-air
heat exchanger
install high
efficiency lights
Energy Efficiency in
Existing Housing & Buildings
 High cost measures:
New heating equipment
Add vapour and air barriers to whole building
Install high efficiency heating equipment
Energy Efficiency in
New Housing & Buildings
 Conventional measures
use good
house/building
orientation
increase
insulation levels
use modern
air sealing and
ventilation
techniques
Energy Efficiency in
New Housing & Buildings
 R2000 / C2000
 exceeds conventional standards
 in widespread use
 40 % energy saving
 quality, quiet and
comfort benefits
 builder training and
qualification
 payback -
less than 7 years
Energy Efficiency in
New Housing & Buildings
 Advanced housing
exceeds R2000 standards
demonstration units only
common features
emerging technologies
 Green housing
applies in new/retrofit housing
water saving devices
Ecologo products
waste treatment systems
recycling
Energy Efficiency in
Communities
 Community
energy audits
energy plan
 Diesel efficiency
 District Heating
Ouje-bougoumou
Renewable Energy
Primary RE Resources Used in Canada:
Sun, Water, Biomass, Wind
and Earth Energy Sources
Renewable Energy currently supplies
17 % of Canada’s energy supply
Renewable Energy for
Buildings
Electricity generation
Heating
Renewable Energy for
Communities
Electricity generation
District heating
Renewable Energy for
Off-grid
Electricity generation