23 million square miles of tropical oceans daily absorb solar radiation equal in heat content to about 250 billion barrels of oil. Ocean thermal energy conversion technologies convert this solar radiation into electrical power by exploiting the thermal gradient temperature differences between the surface and the depths. This enormous resource merits a closer look as policy makers consider alternative technologies for serving future energy demands.

(October 2009) In his article “Paradox of Thrift, author James M. Seibert looks to be calculating his average service lives as the reciprocal of depreciation rates, whereas utility depreciation rates reflect both life and net salvage. For electric utilities, the cost of removal for most types of transmission and distribution property exceeds the salvage, resulting in the net salvage component having the effect of increasing the rate.

With public opposition rising against almost any kind of utility project or investment, collaboration among stakeholders with widely divergent points of view never has been more critical. Three recent utility cases demonstrate how a formal stakeholder collaboration process can build support for otherwise contentious decisions.

The utility industry tends to think about smart-grid development as a technical challenge. However, smart-grid technology will fall short of its promise if utilities don’t obtain buy-in from customers. Successful utilities will actively engage customers at every stage of implementation, customizing their approach to the sensitivities and opportunities in each customer segment.

Utility customers expect their bills to get larger in the future, and they want utilities to provide tools and options allowing consumers to make their own energy choices. However, consumers might be more receptive to green-energy and dynamic pricing programs when economic conditions—and personal incomes—begin improving substantially.

The market for demand-side products and services appears poised to explode. What began as separate energy efficiency, demand response and distributed energy program offerings are now coming together in integrated demand offerings. A recent poll of 400 industry professionals suggests such packaged offerings might open new opportunities for service providers while also enhancing the customer experience.

One year ago, in the midst of the financial crisis, one industry—energy utilities—continued accessing the capital markets. Since then, interest rates and terms have improved dramatically, inviting utilities to refinance billions of dollars in debt that won’t mature for another year. Despite the current rosy picture, however, economic trends might cast a shadow over the industry’s capital-investment plans.

The Province of Ontario, Canada is the first jurisdiction in North America to implement a European style feed-in tariff (FIT). It also was the first jurisdiction in North America to have a comprehensive standard-offer program for electricity supply from renewables.

Back in June, the Bismarck Tribune ran an interview with North Dakota Public Service Commissioner Tony Clark that showed just how difficult it is to build national consensus for renewable energy.