China, feed-in tariff, Germany, Italy, japan, renewable energy, renewable energy investment, renewable energy policy, solar power, Spain, United States, wind power
Tsina, feed-in taripa, Alemanya, Italya, japan, Renewable enerhiya, Renewable enerhiya pamumuhunan, Renewable patakaran ng enerhiya, solar power, Espanya, Estados Unidos, hangin kapangyarihan