Die Abholzung der weltweiten Wälder ist nach der Verbrennung fossiler Brennstoffe die zweitgrößte anthropogene CO2-Quelle. Maßnahmen der UN, die unter dem Namen »REDD« zusammengefasst werden, sollen der Abholzung entgegenwirken. Der Beitrag beschreibt die Funktionsweise von REDD und gibt...

Air pollution and climate change increased the importance of renewable energy resources like solar energy in the last decades. Rack-mounted PhotoVoltaics (PV) and Building Integrated PhotoVoltaics (BIPV) are the most common photovoltaic systems which convert incident solar radiation on façade...

In this study, an inexact optimization modeling approach (IBEM: inexact Beijing energy model) was developed for supporting energy systems planning and air pollution mitigation under uncertainty. This model was based on the integration of multiple inexact optimization techniques, including...

The determination of optimum thickness of insulation is often applied to energy technologies and building projects. In this study, the energy, economic and environmental evaluations of thermal insulation in district heating pipeline are discussed. The optimum insulation thickness, energy saving...

This study presents a roadmap for converting California's all-purpose (electricity, transportation, heating/cooling, and industry) energy infrastructure to one derived entirely from wind, water, and sunlight (WWS) generating electricity and electrolytic hydrogen. California's available WWS...

Die Landnutzung kann sowohl als Quelle als auch als Senke für Treibhausgase fungieren. Der Beitrag gibt einen Überblick über Emissionen bzw. Reduktion von Emissionen aus dem Landnutzungssektor in Annex-I-Ländern.

Im Juni 2013 hat die Regierung von US-Präsident Barack Obama mit dem sogenannten »Climate Action Plan«, einen neuen Versuch gestartet, die Treibhausgasemissionen vor allem im Transport- und Elektrizitätssektor in den nächsten Jahren zu reduzieren. Vor diesem Hintergrund gibt der Artikel...

Water heating represented nearly 13% of 2010 residential energy consumption making it an important target for energy conservation efforts. The objective of this work is to identify spatially-resolved strategies for energy conservation, since little analysis has been done to identify how regional...

In this paper, a methodology for solving the ED (economic dispatch) problem considering the uncertainty of wind power generation and generators reliability is presented. The corresponding PDF (probability distribution function) of available wind power generation is discretized and introduced in...

With China’s rapid economic development and urbanization process, cities are facing great challenges for tackling anthropogenic climate change. In this paper we present features, trajectories and driving forces for energy-related greenhouse gas (GHG) emissions from four Chinese mega-cities...