Solar power has recorded the largest investment in the renewables sector during the past decade , at $ 120bn per year , as the whole sector grew to occupy 70 % of spending on capacity , according to the International Energy report . It said the trend of solar dominance would continue until 2040 when renewables could make up 70 % of the market with an annual investment of $ 350bn from now . Of the solar spending , 30 % came from China . Wind power recorded spending of about $ 110bn each year with hydro at $ 73 billion and nuclear , hydrogen and coal at $ 50bn each . Battery storage saw investment of $ 13bn .
Solar power has recorded the largest investment in the renewables sector during the past decade, at $120bn per year, as the whole sector grew to occupy 60% of spending on capacity, according to the International Energy Agency. It said the trend of solar dominance would continue until 2040 when renewables could make up 70% of the market with an annual investment of $350bn from now. Of the solar spending, 30% came from China. Wind power recorded spending of about $110bn each year with hydro at $73m and nuclear, gas and coal at $50bn each. Battery storage saw investment of $13bn.