L21 Urban Energy and GHGs Flashcards
1
Q
What is energy and its units and what does it measure
A
ability to do work
energy (Joule)= power (Watt) x time (second)
energy measures:
- electricity
- nutrition
- heating value
2
Q
big three energy use sectors in Canada
A
- Industry (indirect impact on urban energy use)
- Transportation (direct)
- Residential (direct)
3
Q
Ontario Electricity System Operation
A
GENERATION: Ontario Power Generation (OPG) and Private Companies
TRANSMISSION: Hydro One (infrastructure ownership and maintenance)
SYSTEM OPERATION:
Independent Electricity System Operator (grid management/planning, demand forecasting, generation procurement and real-time management)
LOCAL DISTRIBUTION: Local Distribution Company (LDC)
4
Q
Heating Degree Days (HDD)
A
- Based on outside air temperature (usually daily average)
- # of degrees that a days avg temp is below indoor temp (usually 18C)
- energy consumption from heating and industrial fuels increases w HDD (colder the days, more energy used for heating)
5
Q
how is GHG intensities useful?
A
useful to estimate GHG emissions activities