Getty Images A future with slashed electricity bills may not be so bright after President Trump imposed a four-year long tariff on imported solar panels this week. Imported solar panels will be subjected to a 30% tariff in the first year, dropping in a sliding scale to 25% in the second year, 20% in the third year and 15% in the fourth year. The decision is part of the administration’s “America First” trade policy. The tariffs will mean higher costs for Americans planning to install solar...