Reuters: Senegal hopes to rein in surging electricity prices, reduce frequent blackouts and power most of its street lighting through an energy policy using solar panels, the government said Friday. Located on Africa’s west coast at one end of the arid Sahel belt south of the Sahara, Senegal has huge solar potential but has so far lacked the expertise and investments to harness it. President Abdoulaye Wade, 82, instructed his energy minister to extend the national electricity grid over …