Another disadvantage of renewable energy sources is the reliability of supply. Renewable energy often relies on the weather for its source of power. Hydro generators need rain to fill dams to supply flowing water. Wind turbines need wind to turn the blades, and solar collectors need clear skies and sunshine to collect heat and make electricity. When these resources are unavailable so is the capacity to make energy from them. This can be unpredictable and inconsistent. The current cost of renewable energy technology is also far in excess of traditional fossil fuel generation. This is because it is a new technology and as such has extremely large capital cost.
Higher interest rates intensified the deflationary pressure on the dollar and reduced investment in . banks. Commercial banks converted Federal Reserve Notes to gold in 1931, reducing its gold reserves and forcing a corresponding reduction in the amount of currency in circulation. This speculative attack created a panic in the . banking system. Fearing imminent devaluation many depositors withdrew funds from . banks.  As bank runs grew, a reverse multiplier effect caused a contraction in the money supply.  Additionally the New York Fed had loaned over $150 million in gold (over 240 tons) to European Central Banks. This transfer contracted the US money supply. The foreign loans became questionable once Britain , Germany, Austria and other European countries went off the gold standard in 1931 and weakened confidence in the dollar.