Solar Energy John Holecek ESP 20061027. Global Energy production Total Energy Production (Wh) 113750000000000000 (1.1 E17) Electricity Production (Wh)

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Presentation transcript:

Solar Energy John Holecek ESP

Global Energy production Total Energy Production (Wh) (1.1 E17) Electricity Production (Wh) (1.5 E16) Solar PV production (Wh) (2.8 E9)

Solar Power Techniques and Applications Solar Thermal Systems for Heating Buildings and Water Solar Thermal-Electric Power Plants (Kramer Junction, CA) Solar Photovoltaic (PV) Systems Off grid On grid

Photovoltaic Cell converts light directly into electricity

PV cell efficiency Crystalline silicon amorphous silicon Jacobsson 2004 Transforming the energy system – The evolution of the German technological system for solar cells.pdf

PV abundance and price Jacobsson 2004 Transforming the energy system – The evolution of the German technological system for solar cells US costs ($/kWh) solar $ compared to industry avg. $ (yr 2001)

Global production of solar cells Jacobsson 2006 The politics and policy of energy system transformation - explaining the German diffusion of renewable energy technology

Internationally Per Capita Total Swiss utilities applied innovative "solar energy exchanges" to provide a market mechanism matching the aggregated demand of customers willing to pay premium prices for solar electricity with solar power generators on long term supply contracts.

Solar potential in US PV modules covering 0.3% of the land in the U.S., equivalent to one fourth of the area currently occupied by railroads, could provide all of the US's electricity needs Unlikely due to historically inconsistent and ineffective energy policies

Japan Strong subsidies to develop solar technologies Policies facilitated investment R&D Production Now the leading producer of PV cells

Germany 1970s Concern of nuclear and acid rain led to advocacy for renewables, incl. solar Niche markets created to learn and develop technology Stable, consistent regulations

Germany 1980s Chernobyl, acid rain, climate change Expanded markets Large scale demonstration projects 250 MW wind and 1000 roofs solar

Germany 1990s Feed-in law “Required utilities to connect generators of electricity from renewable energy technology to the grid and to buy the electricity at a rate which for wind and solar cells amounted to 90% of the average tariff for final customers” Designed to level the playing field by taking into account external costs of conventional electricity generation Jacobsson 2006

Germany 1990s Federal Feed-in Law Additional and powerful financial incentives to investors in renewables Stronger advocacy group due to increased participation Successfully battled nuclear and coal interests to maintain regulatory continuity

Germany policy today Strong demand continues to be driven by feed-in tariff arrangements and is complimented by specific programs in the Federal States and utility demonstration or pilot systems. In energy research, alongside the existing Fourth Program, a Fifth Program (2006 – 2008) will seek to examine production, cost reductions and considerations of environmental issues in manufacturing and operation of PV. Connections to the grid are seen as routine and many utilities participate in the PV market. Public knowledge and perception of PV are high, mainly as a result of the high numbers of distributed grid- connected systems installed.

Four key features Institutional change of energy R&D policy Formation of market in protected niches Entry of business firms Establishment of advocacy groups

Case for subsidies of PV Catch-22 PV not used much because of high cost High cost because of low use of PV Create technology specific market Investment subsidies Cost covering prices Caveats Generate self-sustained growth Capture future markets Cost reductions of 0.8* for PV lead to competitive pricing in 2021 *0.8 = cost decreases 0.2/production doubling

Diffusion of new technologies must be economical Electricity from renewable resources is reasonable in terms of overall cost to society, and cost will be amortized within typical large infrastructure investment timescales

Resources Jacobsson, S. et al Technology Analysis and Strategic Management Sanden, Bjorn 2005 Solar Energy Heiman and Solomon 2004 Annals of the Association of American Geographers Sanden and Azar 2005 Energy Policy Jacobsson and Lauber 2006 Energy Policy