Document name wecc scenarios


Scenario Four - Overview by Key Driver



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Scenario Four - Overview by Key Driver





Key Driver

Scenario Summary

The evolution of electricity demand in WECC region

Stagnant growth rates keep demand low. Little to no sign of a quick turnaround in demand over the long term.

The evolution of electricity supply in the WECC region

Regulatory pressure on shale-gas development leads to a slowdown in natural gas exploration. Coal remains on a retirement trajectory. Renewables viewed as viable alternative because of climate change impacts. Renewables now more cost-competitive with conventional resources.

Innovation in electricity supply technology & distribution systems

Smart grid technology is widely commercialized as the industry develops an integrated vision, which includes demand-side energy, EE, load management, DR and variable-power generation.

The course of regional economic growth in the WECC region

Sustained, lower economic growth rates in North America, Europe, and Japan lead to a belief that structural unemployment will be permanent aspects of these economies.

Changes in the regulation of electric power systems in the WECC region

U.S. and Canadian governments willing to fund renewables demonstrations in order to spur innovation.

Changes in federal regulation affecting electric power industry

Federal policymakers implement tax increases and eliminate subsidies for the oil industry. The resulting windfall in revenue becomes the catalyst for a sustained increase in federal funding for renewables research, development, and deployment.

Changes in social values related to energy issues

Informed energy consumers expect power companies to empower them to manage their individual energy portfolios. Strong emphasis on conservation. Consumers willing to pay higher rates in return for lower overall bills.

Changes in society’s preferences for environmental & natural resources

The harmful effects of climate change lead the U.S. to sign onto an international climate change treaty. Serious public concern about the power industry’s impact on water quality.

Shifts in national & global financial markets

The long-term effects of the housing bust and the credit crunch ensure that financial markets prefer to fund low-risk projects . Private capital makes limited investments in the power industry.

Shifts in the availability & prices of commodity fuels used in the electricity sector

Coal and natural gas considered problematic due to emissions concerns and worries about shale-oil development. Carbon tax increases and higher energy bills enable the transition to renewables.



Scenario Four - Overview of Generation Portfolio

Scenario Four: Form of Power

Description

Direction of Change

Central Station Coal/CCS

Large-scale coal-fired power generation in the large megawatt scale needing transmission connections/with clean carbon sequestration or recycling


~maintains long-term position with CCS technology

Central Station Gas


Large-scale natural gas-fired generation in the large megawatt scale needing transmission connections.

+increasing as cost competitive option

Central Station

Solar


Large-scale solar power generation at the megawatt scale needing transmission connections

-decreasing, unable to compete with other options

Central Station

Wind


Large-scale wind-powered generation in the megawatt scale needing transmission connections

+increasing with technology innovations

Central Station

Nuclear


Large-scale nuclear-powered generation needing transmission connections

-decreasing as clean, cheaper options exist

Geothermal Power

Central station geothermal needing transmission connections

~holds position

Hydro Power Expansion/Extension

Decline in hydro power generation at as a result of ongoing droughts

~holds position

Distributed Solar


Small scale (generally roof top photovoltaic systems) that are located at the site of consumption

+increasing with technology innovations and cost decreases

Distributed

Energy Efficiency



Multiple forms of investment in capital stock which leads to reduced energy consumption or which support load management

+increasing with technology innovations and cost decreases

Distributed

Gas


Small-scale natural gas-fired generation serving loads in a local area which may or may not require distribution

+increasing with technology innovations and cost decreases

Distributed

Power Storage



Use of local sources of electric energy storage from stationary or mobile sources

+increasing with technology innovations and cost decreases

Large Scale

Central Storage



Using a range of technologies and needing transmission connections

+increases with innovation





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