An unknown person dumped the grease down a sewer grate, coating a ConEd transformer.
Sections of Great Kills and Bay Terrace briefly went dark, and officials feared more outages in the city.
Manhattan Borough President Scott Stringer says an East River Blueway will help protect the East Side.
Preparing for flooding is "the single most important infrastructure challenge of our time," Quinn said.
The storm swept through a little more than a week after Hurricane Sandy crippled the city.
ConEd began restoring power in the city, but it will take a few more days to turn the lights back on.
ConEd restored power to the train station at Lexington Avenue and East 53rd Street about 8 a.m.
An electrical fire in the Copacabana building has left businesses without power.
Uprooted trees, broken branches, minor floods, faulty traffic lights and cordoned off streets were seen across Manhattan.
Mayor Michael Bloomberg warned residents to remain indoors through Sunday afternoon to avoid injury from flying debris.
Mayor Michael Bloomberg warned residents of lower Manhattan that there could be no power and serious flooding in the neighborhood after Hurricane Irene hits.
Residents were evacuated Wednesday night and blocks of Washington Heights went dark after a power outage.
FDNY crews were called to Dyckman Street Tuesday after reports of a strong gas smell.
The manhole fire on East 51st Street between Second and Third avenues shut the street to traffic Friday morning.
NYC residents paid $342 million toward green energy projects, but only got back $8 million in jobs and services.
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