Evolution of Perovskite Photovoltaics and Decrease in Energy Payback Time

2013 ◽  
Vol 4 (21) ◽  
pp. 3733-3734 ◽  
Author(s):  
Prashant V. Kamat
Keyword(s):  
Energy Payback ◽  
Payback Time ◽  
Energy Payback Time

Economic and Environmental Assessments of Two Installation Types of Photovoltaic Systems in Shanghai

2014 ◽  
Vol 672-674 ◽  
pp. 44-47
Author(s):  
Xin Fang Wu ◽  
Yong Sheng Liu ◽  
Juan Xu ◽  
Xiao Dong Si ◽  
Wei Lei ◽  
...  
Keyword(s):  
Net Present Value ◽  
Environmental Benefit ◽  
Pv System ◽  
Pv Systems ◽  
Energy Payback ◽  
Payback Time ◽  
Energy Payback Time ◽  
Negative Impacts ◽  
Investment Subsidy ◽  
Electricity Tariff

This paper mainly analyses a BAPV system of 3kWp and a BIPV system of 10 kWp in Shanghai, China. Net present value (NPV) and the payback time (Pd) as the parameters to determine the profitability of the system based on some actual measured data. As there are two subsidy policies in China, including the initial investment subsidy and PV electricity tariff subsidy. The variations of NPV and Pdwith the initial investment subsidy and PV electricity tariff subsidy are researched. Analysis results indicate both the systems have a good economic benefit. Since the manufacturing, utilization and recycling periods of PV systems can lead to negative impacts on the environment. Environmental impacts by both the systems are also evaluated in this paper by the energy payback time (EPBT) and greenhouse-gas payback time (GPBT). Results show both the systems have a good environmental benefit, PV technology and PV system are sustainable.

Siemens and siemens-like processes for producing photovoltaics: Energy payback time and lifetime carbon emissions

JOM ◽  
2011 ◽  
Vol 63 (1) ◽  
pp. 28-31 ◽  
Author(s):  
Yubo Jiao ◽  
Alex Salce ◽  
Wade Ben ◽  
Feng Jiang ◽  
Xiaoyang Ji ◽  
...  
Keyword(s):  
Carbon Emissions ◽  
Energy Payback ◽  
Payback Time ◽  
Energy Payback Time

scholarly journals Energy payback time of grid connected PV systems: Comparison between tracking and fixed systems

2009 ◽  
Vol 17 (2) ◽  
pp. 137-147 ◽  
Author(s):  
O. Perpiñan ◽  
E. Lorenzo ◽  
M. A. Castro ◽  
R. Eyras
Keyword(s):  
Pv Systems ◽  
Energy Payback ◽  
Payback Time ◽  
Energy Payback Time

Energy Demand, Efficiency Measures and Embodied Energy in the Italian Residential Sector

2018 ◽  
Author(s):  
Sara Abd Alla ◽  
Vincenzo Bianco ◽  
Federico Scarpa ◽  
Luca A. Tagliafico
Keyword(s):  
Energy Demand ◽  
Energy Savings ◽  
Embodied Energy ◽  
Residential Sector ◽  
Site Energy ◽  
Energy Payback ◽  
Efficiency Measures ◽  
Payback Time ◽  
Energy Payback Time ◽  
Optimal Material

This paper investigates a strategy for energy saving in the Italian residential sector that includes in the assessment the embodied energy related to the efficiency measures. Simulations are run in three main cities (Milan, Rome and Naples) covering different climate zones. The purpose is, firstly, to estimate the baseline of the buildings energy consumption, secondly, to simulate the implementation of realistic retrofit solutions and, finally, to assess the retrofitting’ embodied energy and its energy payback time. The energy payback is based on the comparison between the net saved operational site energy and the embodied energy of the selected measures. By running the simulations, it is possible to estimate the maximum potential for energy savings and realistic estimation of achievable results in short-medium period. Results show the energy efficiency measures more convenient in terms of energy payback depending on the climate zone. For Naples, a focus on façade insulation has been held and the results defined the optimal material thickness in terms of embodied energy and net saved operational site energy in a life cycle of 15 years.

Sign in / Sign up

Export Citation Format

Share Document