PPL acquires E.ON U.S. LLC, NRG Energy acquires generating station from Kelson, ArcLight Capital buys into OGE's Enogex Holdings LLC joint venture and more ... 

In terms of the political calculus, GHG regulation faces an uncertain future, at least into 2013. And as a flood of cheap gas erodes the perception of an impending environmental crisis, politicians will have less incentive to impose carbon constraints. Does shale gas signal the end of the road for greenhouse gas regulation?

Over the next year (or years), companies in Canada and the U.S. will make the transition towards adopting International Financial Reporting Standards (IFRS). These standards will have a substantial effect on the reporting requirements and financial disclosures of regulated companies. Utilities are preparing their accounting processes to meet a new regulatory standard.

For decades, global uranium suppliers have been providing low cost reactor fuel in plentiful supplies. However the market is changing, and nuclear fuel prices are set to increase. Some plants will be affected more than others, but the age of uranium cost certainty is coming to an end.

The California ISO is going its own way with its proposal for transmission planning, virtually ignoring FERC’s proposed rules on transmission planning and cost allocation. California wants to bring method to the madness of developing transmission projects, and its approach has raised hackles in the industry. The dispute defines the battle over America’s most attractive market for rate-regulated investment.

Fuel supply might be the biggest barrier to scaling-up biomass power generation, but it’s by no means the only problem. Utility projects to repower coal-fired plants face permitting challenges, ballooning technology costs and strained economics. Some owners are giving up the fight.

Small coal-fired plants are particularly vulnerable to economic and environmental pressures, putting some plant owners in what seems like a no-win position. But an emerging option—biocoal from crop wastes—might give small coal units a new lease on life.

In effort to promote local green energy resources, some states are enacting policies that tread on federal authority. Restrictions on power imports to satisfy RPS requirements might violate the Commerce Clause of the U.S. Constitution. Can the states foster home-grown energy without running afoul of federal laws?

Unlike the first generation of domestically sourced plants, new reactors being built in America will draw from a global supply chain for a wide range of materials, equipment and services. This poses a more complex set of challenges, from obtaining talent and material to qualifying and validating product sources.