The House Committee on Energy & Commerce, Subcommittee on Energy & Power during a May 9 meeting considered applying lessons learned in California\u2014what a grid operator has to change to accommodate growing amounts of wind and solar sources\u2014on a national level. While the daytime peaks of solar projects feeding to the grid were not discussed, wind energy ebbs and flows faced criticism from Republican members. American Wind Energy Association chief executive officer Rob Gramlich was defensive of the energy source. He noted that wind is not necessarily that intermittent, that \u201cconventional power plants are far larger contributors to grid variability and the need for flexible reserves.\u201d Rep. Cory Gardner (R-CO) questioned that new renewables need new fossil-fueled projects to back them up. \u201cReserves are required for all resources,\u201d Gramlich noted. Senior fellow and director of climate strategy for the Center for American Progress Action Fund, Dan Weiss, also went to the hearing defending renewable energy sources from critics in the coal and natural gas industries. He noted that without more renewables, the electric grid will be threatened even more. \u201cElectricity generation and transmission are vulnerable to extreme weather, and by extension, climate change,\u201d Weiss stated. Some subcommittee members used the hearing to tout continued use of coal power because it\u2019s a baseload resource.