Renewable energy and non-renewable energy both have definite draw backs. First of all, renewable energy doesn’t be available every time. In contrast to renewable, non-renewable energy runs out and cant be used again as fossil. Second, renewable energy needs high building costs, while non-renewable causes different sorts of pollution like air, ground and water pollution. Third, renewable energy leads to unreliable production. However , non-renewable energy is an expensive and dangerous to be produced. To conclude , we should conserve using both renewable and non-renewable energy to avoid their danger.