As renewable electricity projects wait in line, PJM’s latest capacity auction clears at the maximum price allowed—passing higher costs to customers.By Rambo TalabongPJM Interconnection, the electric grid operator for 13 Mid-Atlantic and Midwest states and the District of Columbia, announced its capacity price on Tuesday for the upcoming service year at $329.17 per megawatt-day, hitting the price ceiling it set for the next two years. Analysts said the price was indicative of a region struggling to secure enough affordable power as demand surges and clean energy projects remain stuck in the interconnection queue.