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In December 2010, the California Public Utilities Commission (CPUC) issued a decision with considerable fanfare that was intended to provide for the development of 1,000 MW of additional new renewable generation and provide California’s large investor-owned utilities (IOUs) with additional flexibility in complying with California’s Renewables Portfolio Standard (RPS) requirements. Unfortunately, it is likely to have the opposite effect.

Located on the scenic Japanese coastline, Tohoku Electric Power Co., Inc.’s new 446-MW Sendai Thermal Power Station Unit 4 is a combined-cycle plant that replaces three 175-MW coal-fired units that had been in operation for more than 50 years. The new plant features the first application of MHI’s 50-Hz M701F4 gas turbine, which provides a thermal efficiency boost from the old plant’s 43% to more than 58%. This change substantially reduces CO2 emissions.

One of the main criticisms of renewable energy facilities is that they are unable to dispatch electricity when it’s needed. The great game-changer is low-cost energy storage, which would enable renewable energy production to be stored and rapidly released when needed. Here are seven promising distributed energy storage technologies that could be commercialized in the near future.

As early as the first century A.D., wind energy was harnessed for practical purposes. Since then, turbine designs have come a long way from the archetypal post-mounted four-bladed devices. Today’s ubiquitous three-bladed designs will soon be evolving in many unexpected directions.

Electricity grids are slowly getting smarter. Simultaneously, the use of distributed generation is increasing. Though smart grid advocates tout the ability of a smarter grid to enable greater deployment of distributed resources, the benefits could flow in both directions.

Biomass cofiring has the potential to cut emissions from coal-fueled generation without substantially increasing costs or infrastructure investments. Research shows that when implemented at relatively low biomass-to-coal ratios, energy consumption, solid waste generation, and emissions are all reduced. However, mixing biomass and coal does create some challenges that must be addressed.

Fire protection systems for air-cooled hydroelectric generators have several special requirements due to these generators’ unique geometries. This survey of options will help plant owners and operators make the best equipment selections for their plants and thereby avoid unexpected surprises.

Excitement over an expected nuclear renaissance reached fever pitch over the past decade. Today, the original volume of announced projects has been sifted, leaving just a few serious ones that may match well with the level of loan guarantees recently announced as part of the president’s budget proposal. The pace of progress is slow, yet progress is almost certainly unavoidable.

Part II of this three-part series moves up the typical utility organization to consider important fleet-level fossil plant operating metrics. This portion of the EUCG-sponsored benchmarking survey found that utilities favor fleet-level metrics that are similar to plant-level metrics but assign them different priority. Utilities generally agreed on what were important metrics in the eight categories examined, although none were favored by a majority of the surveyed utilities.

Tendeka’s advanced monitoring solutions arm, Sensornet, introduced its FireLaser linear heat-detection system, which has been specifically designed for fire hazard detection applications. The FireLaser connects to a fiber-optic cable and determines temperature and distance data at thousands of points along its length. The fiber-optic cable is installed within the asset to be protected, acting as the […]