The EROI of our various energy options, and its associated issues, may be the most important issues that will face future civilizations.
Articles: solar power (32)
According to a recent, comprehensive study of the scientific literature (1), the average energy return on energy invested (EROEI) of the most common photovoltaic technology (polycrystalline Si) is 11-12. A far cry from the legend of the "EROI smaller than one" that's making the rounds in the Web.
The typical solar PV power installation requires access to a private roof and a big budget. However, wouldn't it be possible to get around these obstacles by installing small solar panels on window sills and balconies, connected to a low-voltage direct current (DC) distribution network?
Low-carbon electricity from wind and solar farms will be cheaper than gas and effectively subsidy-free by 2020, says the Committee on Climate Change (CCC).
Small-scale microgrids are increasingly seen as the most promising way to bring electricity to the 1.3 billion people worldwide who currently lack it.
First in-depth radio interview on The Winning of the Carbon War, on Radio Ecoshock. Covers road to Paris, reasons for cautious optimism, Solarcentury and SolarAid in holistic context as microcosm direct actions in the market.
It’s hard to find solutions that confront water depletion, climate change and rural poverty all at once, but an innovative scheme being piloted in the Indian state of Gujarat does just that.
Second part of a discussion about the prospect of decentralized energy systems supplying clean electricity to the developing world.
Solar photovoltaic (PV) systems generate "free" electricity from sunlight, but manufacturing them is an energy-intensive process.
Net metering and DG solar. Just the words are enough to irk antagonists and protagonists into a heated, and all too often, devolving conversation.