29 February, 2016

Karl Böer Solar Energy Medal of Merit International Award for Antonio Luque

Professor Antonio Luque, founder and president of the Solar Energy Institute has been awarded with the "Karl Böer Solar Energy Medal of Merit" award, given by the University of Delaware (USA), for his contributions to the development of photovoltaics. worth $60,000, the prestigious award recognizes the most outstanding international careers in the field of solar energy.
Thanks Professor Luque
Karl Böer prizes are awarded every two years in honor of the scientist, who was a member for years at the University of Delaware, founder of the Institute of Energy Conversion EE (UD's Institute of Energy Conversion) and one of the great researchers in solar cells. The jury awarded prizes consists of a committee which includes representatives of major US solar companies and government Department of Energy.

"Professor Luque has made outstanding contributions in the field of solar energy," said Michael Klein, Executive Director of Karl Böer Solar Energy Medal of Merit, announcing the winner in this edition. "In giving this award, we recognize the impact their work has had on the scientific and technological development of renewable energies. The selection committee is proud to make this announcement. "

A successful career

Karl Böer Solar Energy Medal of Merit recognizes the many achievements of Antonio Luque, who has several decades researching and improving solar PV technology, and turning these achievements into practical applications. In fact, Luque is one of the researchers who owes its solar energy development.

For years working in intermediate band cells, of which he has always said he is a real sun revolution. In 1969, Professor founded the Semiconductor Laboratory of the Polytechnic University of Madrid (UPM) and ten years later became the laboratory at the Institute of Solar Energy (IES), a highly recognized worldwide in photovoltaic research center.

Antonio Luque developed in 1976 Si - bifacial solar cells, which are active on both sides and are able to collect as much direct light as part of it is reflected on the front face, resulting in cells with very high efficiency. In order to manufacture these solar cells, Professor founded the company Isofotón in Málaga and became its first president until 1990.


 CPV
CPV : Antonio Luque, Viacheslav Andrew
In its appreciation to the Spanish scientist, US jury award also highlights that Luque supported the adoption of a generous Feed In Tarifs System for the Spanish photovoltaic, which led in 2008 to 2.6 Gw commisioned to the Spanish Electrical network by producing more electricity with this technology than the medium nuclear power plant production (500 Mw).

Many awards

This is not, of course, the first award for Antonio Luque. Professor has many other national and international awards: the SolarWorld Senior Einstein Award SolarWorld (2008); the IEEE's William Cherry Award for Photovoltaic Science and Technology (2006); the Juan de la Cierva to Technology Transfer (2003) National Award; King James I to Research in the Environment (1999); the Edmond Becquerel Prize for Outstanding Contributions to the Development of Photovoltaic Solar Energy (1992); and the National Technological Research Prize Leonardo Torres Quevedo (1987).

Among the winners in previous editions of Karl Böer Solar Energy Medal of Merit include, among others, the German Hermann Scheer (2009), for his long contribution and commitment to the diffusion of solar energy, and Adolf Goetzberger (1997), founder of Fraunhofer Institute for Solar Energy Systems; David Carlson (1995), inventor of thin film solar cells; and US President Jimmy Carter (1993), who encouraged the development of this technology and aroused worldwide interest in photovoltaics.



Spanish Source: http://www.energias-renovables.com/articulo/nuevo-premio-internacional-para-antonio-luke--20141124

Ernesto Guillamo is registered as 14.302 engineer at COITIM

08 February, 2016

While Commissioning PV systems:

To connect a PV array to the electricity net involves visual observations as well as tests and measurements to verify the safe and proper operation of the system.

Commissioning is performed immediately after PV installations are completed, prior to being operated and put into service for the first time and is a big responsibility.
A thorough commissioning process helps improve safety and quality control, provides verification the installation matches the plans and code requirements, and is performing as expected.
Some of the tests conducted during commissioning may be repeated during periodic routine maintenance to help ensure that the system remains in a satisfactory operating condition over its 25 years lifetime.

Key steps of a PV system commissioning procedure typically include:
Completing final installation details.
Completing visual inspections.
Verifying compliance with NEC requirements.
Conducting electrical verification tests.
Vo/c, Is/c, insulation resistance, polarity.
Verifying system functionality including start-up, operations, shut-down and emergency procedures.
Verifying system power output and energy production meet performance expectations.
Completing system documentation, including changes for as-built drawings.
Conducting user orientation and training on system operations and safety.

1 Final Installation Checkout
A final checkout confirms that the installation is complete before conducting any testing and beginning operations.
Typically, the installation contractor will perform the final checkout, prior to formal inspections by building officials.
With the exception of the PV array, all circuits should be de-energized wherever possible in preparation for system testing.
A punch list can be used to help check off items as they are completed, and typically includes the following items:
Verifying that all structural and electrical components are properly installed and secured.
Verifying that all components are installed in a neat and workmanlike manner, including wire management practices.
Verifying proper connections and terminations, including terminal torque specs.
Verifying that all required system and equipment labels, marking and placards are correct and in the proper locations.
Verify that any calibrations or adjustments for inverters, charge controllers or other equipment are properly set or programmed.
Verifying that all disconnects are open, fuses are removed and lockout/tagout procedures are in place.
Identifying and completing any unresolved items.
Completing site clean-up and restoring site to original conditions.

2 Visual Inspection

Visual inspections of PV systems should be performed as part of commissioning and carried out routinely over the system lifetime to verify and ensure that the system remains in a safe and properly functioning condition.
There are many areas to evaluate with visual inspections, with the frequency and level of detail depending on the type and size of the system involved.
Visual inspections are supplemented with other observations, test measurements and performance data to fully evaluate the safety and condition of PV systems.
Initial inspections are primarily used to identify unfinished installation details and verify compliance with the applicable code requirements.
Visual inspections conducted after installation during periodic routine maintenance tend to look for physical damage or degradation of equipment from extreme temperatures, moisture or other environmental conditions.
Prior to initial operation, all PV systems should be inspected for full compliance with the many NEC requirements.
Checklists are often used to review and verify these requirements at the time of inspection, for examination and approval by local authorities.

Among the key NEC requirements covered in Article 110 Requirements for Electrical Installations include:

All equipment shall be properly listed, identified and labeled, suitable for the conditions of use, and be installed according to the listed product instructions [110.3].
All equipment shall be installed in a neat and workmanlike manner, consistent with quality craftsmanship standards in the electrical construction industry [110.12].
All equipment shall be mechanically secured and provided with adequate ventilation or cooling as required [110.13].
All electrical terminations and connections shall be made using approved products and installation methods [110.14].

This includes consideration of conductor and terminal materials, temperature ratings, and use of specially approved terminals for use with fine stranded conductors or more than a single conductor.
Pressure connectors using a set screw have required tightening torques, and these values should be recorded and verified at commissioning.
All electrical equipment shall be marked with the manufacturer’s identification and applicable specifications and ratings [110.21].
Sufficient working spaces shall be provided about any electrical equipment that is likely to be serviced or maintained while energized [110.26].

Clear spaces and dedicated spaces are also required about certain electrical equipment, such as panel boards or switchgear.
NEC requirements covered in Article 690: Solar Photovoltaic Systems should also be evaluated and verified during visual inspections.

These requirements address the following areas:
Calculating circuit voltages and currents
Determining conductor and over current device sizes and ratings
Locating disconnecting means
Wiring methods and connectors
Equipment and system grounding
Markings and labels
Connecting to other sources (also Art. 705)
Installing batteries and charge controllers

Some sources for PV system inspection checklists and guidelines include:

Many articles in the first four chapters of the NEC also apply to most PV installations, including but not limited to:
Article 110 Requirements for Electrical Installations
Article 230 Services
Article 240 Overcurrent Protection
Article 250 Grounding and Bonding
Article 300 Wiring Methods
Article 310 Conductors for General Wiring
Article 314 Outlet, Device, Pull, and Junction Boxes
Article 338 Service-Entrance Cable: Types SE and USE
Article 344 Rigid Metal Conduit: Type RMC
Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC
Article 358 Electrical Metallic Tubing: Type EMT
Article 400 Flexible Cords and Cables
Article 408 Switchboards and Panelboards
Article 445 Generators
Article 450 Transformers
Article 480 Storage Batteries
Article 705 Interconnected Electric Power Production Sources

2.1 Labels and Markings

Numerous markings, labels and signs are required to identify PV systems and their components, and to warn operators, service personnel or emergency responders of hazardous conditions.
Manufacturer markings and labels identify the size, type, specifications and ratings for PV modules, inverters, controllers, combiner boxes, conductors, raceways, overcurrent devices, switchgear and all other electrical components.
These markings are placed on the product at the time of manufacture, and include listing marks from the approval agency.
Building officials may verify these markings during inspections, and rely on them for their approvals [110.2, 110.3, 100.21].
Additional markings and labels are required for the overall system and certain components in PV systems, and are to be provided and placed by the installer.
These include additional labels on dc-conductors and raceways [690.4, 690.31], connectors [690.33], disconnecting means [690.14, 690.17], and at the point of utility connection [690.54, 705.10, 705.12].
Labels and markings are also required on PV modules [690.51], alternating-current modules [690.52], the PV power source [690.53], ground fault protection equipment [690.5] and battery storage systems [690.55].

Special labeling is also required for bipolar arrays [690.7], ungrounded PV arrays [690.35], facility with either stand-alone systems or multiple power sources [690.56] and stand-alone inverters providing a single 120-volt supply [690.10].