How to manage the green revolution.
Dramatic changes are coming to the electric industry, sparked by a surge of renewable energy and related transmission. Growth in demand-side resources, conservation and smart technologies will add integration dilemmas to an already complex power system.
Ocean thermal energy conversion offers a timely renewable alternative.
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.
Can a European-style renewable model work in the Americas?
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.
Transmission expansion costs are spread unevenly, driving a wedge between utilities and regions.
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.
The best way to tap into renewable project funding.
Renewable generation resources have become the rallying cry for policymakers and developers alike as the movement grows to generate electricity in a more climate-friendly manner. Pending federal legislation creating a carbon cap-and-trade market and a national renewable portfolio standard (RPS), together with existing state requirements, is spurring utilities that lack renewable generation to acquire some—no matter the federal legislative outcome—and causing utilities with sizeable renewable generation to expand their existing portfolios.
Carbon costs will reshape the generation fleet and affect retail rates.
American utility consumers face a compelling generational challenge: satisfy the need for a reliable power supply, at a reasonable price, while also reducing greenhouse-gas emissions and building a sustainable energy industry. How the government structures green-energy mandates will determine how long existing power plants remain viable.
How solar PV could redraw the map for green energy and grid investment.
When Pacific Gas & Electric broke the news six weeks ago that it had signed a deal with Solaren Corp. to buy 200 MW of solar energy from satellites launched into geosynchronous orbit, the idea seemed almost laughable. Solaren’s plan is to catch unobstructed sunlight falling on arrays of photovoltaic solar panels deployed in the crystalline void of outer space, and then to convert the generated electricity into radio-frequency energy for transmission to Solaren’s ground-based receiving station outside Fresno. Welcome to the new renewable reality.
Allowance structures will influence project economics.
Carbon-reduction policies are being designed and implemented across the country. One common feature of these regulatory programs is a carbon cap-and-trade system—i.e., a carbon emissions market.
Renewables attract utility investment dollars.
New federal policies have opened the gates to utility investments in renewable generating plants. Some states, however, still make it difficult for utilities to put such assets into the rate base. Executives at Duke, OG&E, PG&E and Xcel Energy discuss challenges and opportunities affecting their renewable investment strategies.
As green mandates tighten, utilities scramble to comply.
Mandatory renewable portfolio standards are becoming the norm. But after low-hanging green fruits are harvested, renewable power might get scarce. Many utilities will struggle to meet RPS requirements until lawmakers create stable federal policies and a national market for green credits.