Waste heat recovery at steel plant. 429.96. 56.70. Waste heat recovery at cement plant. 419.58. 61.56. Efficient domestic lighting with LEDs. 410.86. 90.04. Geothermal power. 356.54. 262.50. Wind turbines, on-shore. 351.70. 193.75. Solar PVs, large grid. 298.30. 76.38. Wind turbines, off-shore. 271.33. 135.00. Biogas at big farms. 9.94. 28.10.