China retained its global top spot for clean energy investment in 2014, with surging demand especially in both solar and wind.

According to The Bloomberg New Energy Finance report, the country's investment in clean energy last year hit a record $89.5 billion, a 32 percent rise on 2013, accounting for about 29 percent of the world's total.

Investment worldwide totaled $310 billion, up 16 percent on the previous year, driven by surges in investment in solar energy in China and the United States, and offshore wind energy in Europe, said the report.