Assuming it is plain water and had normal air pressure it would stay 100 degrees Celsius having reached its latent heat of vapouristaion the extra energy added into the water in that 10min would go into turning the water into steam. Simplified: it would stay at the same temp
The wastes would build up in your blood, and can cause serious damage. You can also have serious infections and pain if your kidney is not functioning properly.
Based on the above sources, the most economical to use is the hydroelectric, since there is a fast-moving current in the river. Also, it is the commonly used energy-generation process. For wind turbine, it would require a minimum of 8kph to power the wind turbine, in this case is not sufficient. Coal deposit is not likely an option because this has some environmental concerns. Solar is not also an option since the village frequently has rainy days.
