The transition to clean energy is complicated by a number of barriers, such as

1. Cost: Transitioning to clean energy can be cost-prohibitive, particularly upfront costs associated with purchasing and installing renewable energy technologies such as solar and wind. 2. Intermittency: The inconsistency of weather-dependent energy sources such as solar and wind make it difficult to depend on them for grid-level energy production. 3. Infrastructure: Renewable energy sources often require significant infrastructure changes to effectively integrate with existing energy grids. This can be costly, as well as timely, to implement. 4. Public Perception: Perceptions among the public can be great barriers to the transition to clean energy. Causes can range from skepticism of renewable energy technology to the long-term commitment required to enact change. 5. Policy: Laws and regulations can create barriers to using renewable energy sources, or to implementing other measures that could encourage the move toward clean energy. 6. Technology Availability: Currently, renewable energy sources such as solar and wind are not yet available in all areas or at a scale that meets the needs of large industrial grid-level energy consumers.