Category : Science

StratoSolar-PV: A Complete Energy Solution

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The problem:Most of the world?s energy comes from burning fossil fuels, which adds CO2 to the atmosphere. The consensus of the world scientific community is that rising CO2 levels are warming the planet and causing climate change. Warming of over one degree Celsius is already evident and climate variability is already exceeding expectations for that level of warming.Governments have generally accepted the truth of the situation for some time but the unwillingness to accept the economic costs and political consequences of the measures proposed to reduce CO2 emissions have resulted in little change in the status quo.There is no political will by governments to impose costly change or by citizenry to demand or accept costly change, so the default behavior is effectively to defer substantive action to a time when either climate change has a tangible cost (like very high food and/or energy prices) or resource constraints (like peak oil) force the issue. This is likely to take a-decade or two by which time we will have passed the generally agreed goal of not exceeding a 2-degree Celsius average temperature rise.Within the current political and economic constraints, there is an emerging awareness that the only way to cause substantive change is by developing market-competitive carbon-free energy alternatives that are cheaper than fossil fuel energy. Market competition driven by profitable investment opportunities should then result in the decline of fossil-fuel energy use.A solution: StratoSolar-PVSolar PV based on crystalline silicon (c-Si) is a well-established technology with a forty-plus -year history of cost reduction along a consistent learning curve. However, even with the recent dramatic reduction in PV-panel prices, electricity generated by PV systems at the sunniest locations costs more by a factor of two times, than electricity generated using fossil fuels. To get costs down to competitive levels will take around 5 doublings of current cumulative generation capa

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