New combustion turbine (CT) simple and combined-cycle plants face new challenges in permitting because of more stringent startup emission limits. Recent permits issued in a variety of jurisdictions have included limits on startup emissions, both in mass per start and rolling annual startup mass limits for VOC, NOx and CO. The growth of renewable energy such as wind and solar, the retirement of coal units and low natural gas prices have increased demand for new CT power plants. Permitting agencies are demanding both lower emissions overall and during start-up, ramping and shutdown.
展开▼
