China regains clean energy investment lead

According to an earlier Bloomberg New Energy Finance report, clean energy investment slid 22 percent worldwide in the first quarter of 2013.

Investment in renewable and energy-efficiency technologies in the US fell 54 percent to $4.5 billion, while investment in China declined 15 percent to $8.8 billion during the period.

"Each year the first quarter is generally down, although is not down this much. This was the worst first quarter since 2009. As the economy improves, I think the market is pretty resilient," added Cuttino.

Lin said: "China has little problem in keeping a 30 percent annual growth in clean energy investment, largely due to a relatively low base.

"Also, the government has taken more action to help struggling manufacturers survive."

Established in 1948, The Pew Charitable Trusts is an independent US-based non-profit non-governmental research and public policy organization.