Experts Predict Accelerating Cost Reductions in Offshore Wind Study by wind energy researchers from Lawrence Berkeley National Laboratory and UMass Amherst shows expected cost declines of 17%–35% by 2035 and 37%–49% by 2050 April 15, 2021 Figure 1. Estimates of future levelized costs in best-guess scenario. Figure 2. Estimated change in levelized costs across all three scenarios. Note: costs for floating offshore wind are compared to a 2019 baseline for fixed-bottom. Figure 3. Anticipated growth in onshore and offshore turbine size. AMHERST, Mass. – Wind energy experts, in a study by researchers at Lawrence Berkeley National Laboratory along with Erin Baker of the University of Massachusetts Amherst, predict significant reductions in the cost of wind energy by 2050, according to new research published today in the journal