Restoring Predictability to Historic Preservation Review
he National Historic Preservation Act (NHPA) was enacted in 1966 to protect America’s cultural heritage at a time when rapid
Cecilia Fassett
April 16, 2026
Restoring Predictability to Historic Preservation Review
he National Historic Preservation Act (NHPA) was enacted in 1966 to protect America’s cultural heritage at a time when rapid development was destroying historic sites. Its core process, Section 106, requires federal agencies to consider how projects they fund, permit, or carry out affect historic and cultural resources. Though well-intentioned, nearly six decades later, Section 106 has become a source of uncertainty, delay, and rising costs for energy, transmission, and conservation projects.
Cecilia Fassett
April 16, 2026
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![By Siemens Pressebild, http://www.siemens.com - Photo taken from [1] with the friendly permission of Siemens Germany by Christian Kuhna, E-Mail: christian.kuhna/klammeraff/siemens/dot/com, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=442598
The design of new power plant turbines has a major influence on the efficiency of power generation
Improving the efficiency of power plants today means battling to achieve increases of the order of one tenth of a percentage. Here the design of the turbine blades plays an important part. The high degree of precision required for their development and manufacture can only be achieved with computers. The result is good for the environment as well as for the budget of the power plant operator: an improvement of one whole percent in the efficiency of a brown-coal fuelled base load power plant unit with an output of 900 MW reduces the amount of coal used per year by 155,000 tons and the quantity of carbon dioxide emission by 150,000 tons, with the same electric output. With the present number of coal-fired power plants, a one-percent improvement in efficiency would relieve the environment of 158 million tons of carbon dioxide. The world record for a coal-fired steam turbine, 48.5 percent, is held by Siemens; for power plants in which the exhaust heat of gas turbines is used to drive steam turbines, Siemens also holds the world record of 58.4 percent. The picture shows the blades being mounted on a steam turbine at Siemens factory in Mühlheim.
Das Design neuer Kraftwerksturbinen bestimmt maßgeblich den Wirkungsgrad der Stromerzeugung
Verbesserungen des Wirkungsgrades von Kraftwerken sind heute ein Kampf um Zehntel-Prozentpunkte. Eine wichtige Rolle spielt dabei die Gestaltung der Turbinenschaufeln. Die heute bei deren Entwicklung und Fertigung erforderliche höchste Präzision lässt sich nur noch mit Unterstützung durch Computer erreichen. Das Ergebnis ist gut für die Umwelt und für das Budget der Kraftwerksbetreiber: Ein mit Braunkohle befeuerter Grundlast-Kraftwerksblock mit einer Leistung von 900 Megawatt verbraucht z. B. mit einem Plus von einem ganzen Prozentpunkt bei gleich bleibender elektrischer Leistung pro Jahr 155.000 Tonnen wenig](https://c3newsmag.com/wp-content/uploads/elementor/thumbs/Dampfturbine_Laeufer01-rm1ozb5ky9s1btgsh9qukxplsmti3yo5jnkkdspsuy.jpg "Steam turbine")
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