Tag Archives: EROEI

Eight Pitfalls in Evaluating Green Energy Solutions

Does the recent climate accord between US and China mean that many countries will now forge ahead with renewables and other green solutions? I think that there are more pitfalls than many realize. Pitfall 1. Green solutions tend to push … Continue reading

Posted in Alternatives to Oil, Energy policy, Financial Implications | Tagged , , , , , , | 1,278 Comments

Diminishing Returns, Energy Return on Energy Invested, and Collapse

What do diminishing returns, energy return on energy invested (EROI or EROEI), and collapse have to do with each other? Let me start by explaining the connection between Diminishing Returns and Collapse. Diminishing Returns and Collapse We know that historically, … Continue reading

Posted in Financial Implications | Tagged , , , | 491 Comments

Energy Products: Return on Investment is Already Too Low

My major point when I gave my talk at the Fifth Biophysical Economics Conference at the University of Vermont was that our economy’s overall energy return on investment is already too low to maintain the economic system we are accustomed … Continue reading

Posted in Financial Implications | Tagged , , , , | 242 Comments

IEA Oil Forecast Unrealistically High; Misses Diminishing Returns

The International Energy Agency (IEA) provides unrealistically high oil forecasts in its new 2012 World Energy Outlook (WEO). It claims, among other things, that the United States will become the world’s largest oil producer by around 2020, and North America will become … Continue reading

Posted in Energy policy, Financial Implications, News Related Post | Tagged , , , , , , , , , | 174 Comments

Obstacles Facing US Wind Energy

In the United States, we have been working on scaling up wind energy but not getting very far. In 2010, wind energy supplied only 2.3% of electricity purchased. Such slow progress seems strange for a product that seems to have … Continue reading

Posted in Alternatives to Oil | Tagged , , | 81 Comments