Performance of amorphous silicon double junction photovoltaic systems in different climatic zones

Gottschalg, Ralph; Jardine, Christian N.; Rüther, Ricardo; Betts, Thomas R.; Conibeer, G.; Close, Josie; Infield, David; Kearney, M. J.; Lam, King-hang; Lane, K.; Pang, Huihua; Tscharner, R.

doi:10.1109/pvsc.2002.1190947

Cited by 11 publications

(8 citation statements)

References 5 publications

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“…Gottschalg et al . examined five different dual junction systems in different climate zones . Seasonal effects commonly observed for a‐Si systems were not attributed to seasonal annealing effects but due to incident spectra.…”

Section: Detailed Bibliographymentioning

confidence: 99%

Photovoltaic Degradation Rates—an Analytical Review

Jordan

Kurtz

2011

Progress in Photovoltaics

1,100

552

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As photovoltaic penetration of the power grid increases, accurate predictions of return on investment require accurate prediction of decreased power output over time. Degradation rates must be known in order to predict power delivery. This article reviews degradation rates of flatplate terrestrial modules and systems reported in published literature from field testing throughout the last 40 years. Nearly 2000 degradation rates, measured on individual modules or entire systems, have been assembled from the literature, showing a median value of 0.5%/year. The review consists of three parts: a brief historical outline, an analytical summary of degradation rates, and a detailed bibliography partitioned by technology.

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Section: Detailed Bibliographymentioning

confidence: 99%

Photovoltaic Degradation Rates—an Analytical Review

Jordan

Kurtz

2011

Progress in Photovoltaics

1,100

552

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“…The average performance ratio (PR) of grid-connected PV systems for five European countries and in Japan reported in IEA PVPS are as follows: Austria, 0Á639; Germany, 0Á671; Italy, 0Á673; Netherlands, 0Á694, Switzerland, 0Á694 and Japan, 0Á72Á 15 In the UK, PR of eight domestic PV systems ranged within 0Á48-0Á77, 16 and 52% of 66 PV systems' PR was below 0Á7 under PV Domestic Field Trial Programme. 17 In climates where low insolation dominate as for many commercial modules, the module efficiency reduces at low insolation levels; 18 this adversely affects the PR of a PV system. 19 This work presents the performance of a grid-connected roof-mounted PV system in the Northern Ireland.…”

Section: Introductionmentioning

confidence: 99%

The effect of low insolation conditions and inverter oversizing on the long‐term performance of a grid‐connected photovoltaic system

Mondol

Yohanis

Norton³

2007

Progress in Photovoltaics

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The performance of a roof mounted grid-connected photovoltaic (PV) system in Northern Ireland was monitored over 3 years on annual, seasonal and monthly bases. The overall system performance was adversely affected by low insolation conditions; 19% of total incident insolation was absorbed at irradiance level below 200 W/m 2 and 67% below 600 W/m 2 , only 6Á2% above 900 W/m 2 . In summer and winter, the PV and system efficiencies were 9Á0 and 8Á5%, and 7Á8 and 7Á5%, respectively and inverter efficiencies were 86Á8 and 85Á8%, respectively. The inverter for this particular system was oversized; 77% of the total DC energy produced when inverter's operating load was 50% of its rated capacity. The annual average monthly system performance ratio (PR) was 0Á61 with seasonal variation 0Á59 to 0Á63. The average monthly PV, system and inverter efficiencies over the whole monitored period were 8Á8, 7Á6 and 86Á8%, respectively. The main losses of the system were inverter DC/AC conversion loss, inverter threshold loss and low insolation loss.

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“…This result indicates that either significant battery back-up or a large overlap of CHP with PV generation will be necessary to 978-1-4244-2950-9/09/$25.00 ©2009 IEEE provide base load for the system even during the day in this region. It also indicates that thin film PV panels, which have better performance in overcast conditions, may be a more suitable choice for the region [20].…”

Section: Resultsmentioning

confidence: 99%

Optimizing design of household scale hybrid solar photovoltaic + combined heat and power systems for Ontario

Derewonko

Pearce

2009

2009 34th IEEE Photovoltaic Specialists Conference (PVSC)

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This paper investigates the feasibility of implementing a hybrid solar photovoltaic (PV) + combined heat and power (CHP) and battery bank system for a residential application to generate reliable base load power to the grid in Ontario. Deploying PV on a large-scale has a penetration level threshold due to the inherent power supply intermittency associated with the solar resource. By creating a hybrid PV+CHP system there is potential of increasing the PV penetration level. One year of one second resolution pyranometer data is analyzed for Kingston Ontario to determine the total amount of PV energy generation potential, the rate of change of PV power generation due to intermittent cloud cover, and the daily CHP run time required to supply reliable base load power to the grid using this hybrid system. This analysis found that the vast majority of solar energy fluctuations are small in magnitude and the worst case energy fluctuation can be accommodated by relatively inexpensive and simple storage with conventional lead-acid batteries. For systems where the PV power rating is identical to the CHP unit, the CHP unit must run for more than twenty hours a day for the system to meet the base load requirement during the winter months. This provides a fortunate supply of heat, which can be used for the needed home heating. This paper provides analysis for a preliminary base line system.

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Performance of amorphous silicon double junction photovoltaic systems in different climatic zones

Cited by 11 publications

References 5 publications

Photovoltaic Degradation Rates—an Analytical Review

Photovoltaic Degradation Rates—an Analytical Review

The effect of low insolation conditions and inverter oversizing on the long‐term performance of a grid‐connected photovoltaic system

Optimizing design of household scale hybrid solar photovoltaic + combined heat and power systems for Ontario

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