The International Energy Agency says Marcellus drillers will produce more gas with fewer, more efficient rigs, and that much of the new production will be exported.
The owners of the three-wheeled vehicle for sightseeing said they did not have the resources to appeal the state's denial of a license.
Citing safety concerns, state regulators denied the request by TukTuk Lancaster to operate an auto rickshaw for tourists.
The 56-year-old Centre County resident, one of two Republicans on the five-member PUC, has focused on public safety efforts.
The company suspended installing its contentious Marcellus Shale pipeline last week after some Chester County residents complained their private water wells were affected.
It suspended drilling its $3 billion Mariner East 2 pipeline near Exton after about a dozen residents complained that their private well water was affected.
The commission sided with a homeowner who feared a utility's use of herbicides along its power lines would contaminate his drinking water.
A hearing examiner had said Aqua Pennsylvania failed to prove the acquisition would provide a public benefit.
Since Liz Robinson founded the nonprofit agency in 1984, it has weatherized 45,000 low-income homes and fixed 50,000 heating systems.
The expenditures, aimed at improving resilience, will increase the monthly bill for a typical residential customer about 49 cents.
The company says it will "prematurely" shut down its Three Mile Island nuclear reactor near Harrisburg in 2019 unless it gets a bailout from the Pennsylvania legislature.
Andrew Maykuth covers energy news.