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PPG (NYSE:PPG) today announced the startup of a high-efficiency power-generation facility at its Quattordio, Italy, automotive paint and coatings manufacturing site. The facility is expected to reduce energy costs by 13% and carbon dioxide (CO2) emissions by 10% annually.Combining cooling, heating and power, which is known as trigeneration, the facility can operate on a combination of natural gas and 5% hydrogen. This can be increased to 20% hydrogen with minimal investment and up to 60% with fu