scholarly journals Estimating the Economic Impacts of Net Metering Schemes for Residential PV Systems with Profiling of Power Demand, Generation, and Market Prices

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3222 ◽  
Author(s):  
Antans Sauhats ◽  
Laila Zemite ◽  
Lubov Petrichenko ◽  
Igor Moshkin ◽  
Aivo Jasevics
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Power Demand ◽  
Market Prices ◽  
Pv Systems ◽  
Billing System ◽  
Net Metering ◽  
Support Costs ◽  
Cost Of Energy ◽  
Long Time

This article analyses the influence of supporting scheme variants on the profitability of a projected investment of residential photovoltaic systems. The focus of the paper lies in evaluating the feasibility for the power system of solar power generation technologies to achieve a balance between energy generation and support costs in a more efficient way. The case study is based on a year-long time series of examples with an hourly resolution of electricity prices from the Nord Pool power market, in addition to the power demand and solar generation of Latvian prosumers. Electric energy generation and the consumption of big data from more than 100 clients were collected. Based on these data, we predict the processes for the next 25 years, and we estimate economic indicators using a detailed description of the net metering billing system and the Monte-Carlo method. A recommendation to change the current net system to a superior one, taking into account the market cost of energy, concludes the paper.

EVALUATION OF WATER ENERGETIC MODES OF ZHIGULEVSKAYA GYDROELECTRIC POWER STATION AND CORRELATION BETWEEN ELECTRIC ENERGY GENERATION AND WATER DISHARGE

2015 ◽  
Vol 5 (2) ◽  
pp. 73-80
Author(s):  
Vladimir Ivanovich MASLIKOV ◽  
Gennady Ivanovich SIDORENKO
Keyword(s):  
Water Discharge ◽  
Electric Energy ◽  
Energy Generation ◽  
Hydroelectric Power Station ◽  
Winter Period ◽  
Hydroelectric Power ◽  
Power Station ◽  
Operating Modes ◽  
Long Time ◽  
Tail Water

Evaluation of water energetic modes of Zhigulevskaya Hydroelectric Power Station is performed. It is found that operating modes are not always strictly in accordance with requirements for maintaining of water level in head water as well as with water discharge in tail water during the period of spring fl ood, summer-, autumn- and winter runoff low. Evaluation results point to the need for review of the Rules of water management. Analysis of real operating modes of Zhigulevskaya Hydroelectric Power Station shows that long-time annual electric energy generation and guaranteed monthly mean capacity in winter period exceed design specifi cation. Stable statistic patt erns of energy indexes and water discharge characteristics are defi ned. These patt erns can be applied for predicting of electric energy generation by Zhigulevskaya Hydroelectric Power Station taking into account climatic water changes.

scholarly journals Shading on Photovoltaic Collectors on Rooftops

2020 ◽  
Vol 10 (8) ◽  
pp. 2977
Author(s):  
Avi Aronescu ◽  
Joseph Appelbaum
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Urban Environments ◽  
Output Energy ◽  
Pv System ◽  
System Designer ◽  
Pv Systems ◽  
Mathematical Expressions ◽  
Different Types

Rooftop photovoltaic (PV) systems in urban environments play an important role in solar electric energy generation. Shading on PV collectors, by self-shading, walls and fences on rooftops, affect negatively the output energy of the PV systems. Increasing the distance between the collector rows, and between the walls and fences near to the collectors, may minimize the shading losses. Practically, this option is usually limited, especially on rooftops. Rooftops may be of different types: horizontal, inclined, and saw-tooth, and may have obscuring structures like walls and fences. The distance between the shading objects and the PV collector rows determine the loss of energy due to shading. The study provides the PV system designer with mathematical expressions for distances from obscuring objects for the deployment of PV systems on rooftops. The optimal inclination and azimuths angles of a PV system on a triangular sloped rooftop are also illustrated.

Introduction and overview of the current situation regarding the employment of biomass

2014 ◽  
pp. 691-697
Author(s):  
Suleiman José Hassuani
Keyword(s):  
Sugar Industry ◽  
Energy Generation ◽  
Current Situation ◽  
The Other ◽  
Significant Excess ◽  
Cane Juice ◽  
Energy Needs ◽  
Long Time ◽  
Biomass Availability ◽  
Sugarcane Industry

The sugarcane industry for a long time has focused only on the cane juice, its extraction and conversion to sugar. Bagasse was considered a residue and burnt inefficiently to generate steam and power. In the last decades, bagasse gradually started to be converted into energy in a more efficient way, supplying all the sugar industry energy needs (power, and steam) and, in some cases, significant excess electricity has been exported to the grid, becoming another important source of revenue. This motivated several studies of more advanced energy generation systems to boost energy exports. In more recent years, technologies called 2nd and 3rd generation have taken over the scene with many options, promising to convert biomass into more valuable products such as biofuels, chemicals, fertilisers, pellets, etc. Unfilled expectations and opportunities are rising. On the other hand, these technologies are competing for the same biomass, and this has to be considered. The industry has started to question ‘which way to go’, strategy and investment wise. The present study provides a broad scenario for the biomass availability, and its employment, with a close view to the main processes and products that might have an important role in the future of the biomass in the sugarcane industry.

scholarly journals Comparison of Solar Tracking and Solar Fix Mode on the Efficiency Electric Energy Generation Based on Microcontroller

2020 ◽  
Vol 537 ◽  
pp. 012030
Author(s):  
Dean Corio ◽  
Alvino Ramadian ◽  
Rheyuniarto Sahlendar Asthan ◽  
Mia Maria Ulfah
Keyword(s):  
Electric Energy ◽  
Energy Generation ◽  
Solar Tracking

scholarly journals The Long-term Cost of Energy Generation

2020 ◽  
Author(s):  
Jimmy Horn ◽  
Yutong Wu ◽  
Ali Khodabakhsh ◽  
Evdokia Nikolova ◽  
Emmanouil Pountourakis
Keyword(s):  
Energy Generation ◽  
Cost Of Energy

Flywheel energy storage systems and their applications in power engineering

2021 ◽  
Vol 6 ◽  
pp. 26-34
Author(s):  
Vladimir Poltavets ◽  
Irina Kolchanova
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Storage Systems ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Electric Energy ◽  
Energy Generation ◽  
Flywheel Energy Storage ◽  
Energy Storage Systems ◽  
Continuous Growth

The continuous growth of renewable energy sources has drastically changed the paradigm of electric energy generation and distribution. Flywheel energy storage systems are a clean and efficient method to level supply and demand in energy grids, including those incorporating renewable energy generation. Environmental safety, resilience, high power capacity and quality make flywheel energy storage very promising. This paper contains a review of flywheel energy storage systems, already being in operation, and applications of flywheel energy storage in general.

Discussion of “Cost of Energy Generation: Second Symposium on Power Costs: Elements of Cost”

1939 ◽  
Vol 104 (1) ◽  
pp. 1149-1209
Author(s):  
Joel D. Justin ◽  
Frank H. Mason ◽  
W. V. Burnell ◽  
Daniel W. Mead ◽  
A. G. Christie ◽  
...  
Keyword(s):  
Energy Generation ◽  
Cost Of Energy ◽  
Power Costs
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