The main factors affecting electricity prices in Sweden include market conditions, supply and demand, fuel prices, and government regulations or taxes. Market conditions, such as changes in the global economy, can impact the cost of producing electricity. Supply and demand can also influence prices, as higher demand for electricity can drive up prices, while lower demand can cause prices to decrease. Additionally, the cost of fuel (such as coal, natural gas, or oil) used to generate electricity can have a direct impact on prices. Lastly, government regulations and taxes can affect the overall cost of electricity for consumers.