AN OUNCE OF PREVENTION IS WORTH A POUND OF CURE...
BEFORE YOU PUT YOUR FIRST DOLLAR INTO A SOLAR PHOTOVOLTAIC SYSTEM, TALK TO A CERTIFIED DESIGNER... THEY WILL DETERMINE YOUR OBJECTIVES, BUDGET, AND TIME TABLE BEFORE ANY PLAN IS IMPLEMENTED... SOME OF THE QUESTIONS TO BE ANSWERED ARE... (1) What is your solar window at your location where the solar photovoltaic, pv, modules are to be mounted? (location, location, location) (2) Amount of solar pv array power? (3) Type of solar pv modules, Monocrystaline, Polycrystaline, or Amorphous Thin Film / Roof Shingles? (4) Any shading problems at the pv mounting location's solar window? (5) Solar pv modules to use either roof mounts, ground mounts, pole mounts, or custom? (6) If using pole mounts, should you use a fixed top of pole mount or side of the pole mount or tracker pole mount? (7) What type of roofing mount should be used if the roof is made of flat asphault shingle, barrel tile, concrete, gravel, metal, standing-seam metal? (8) Roof pitch? (9) Do you want a grid-tied system or off-grid stand alone system, or a grid-tied system with battery backup? (10) Do you want an expandable modular solar pv system? (11) What direction should your solar pv system face to obtain the best solar window at your location? (11) What is the tilt angle of your array at your location to obatin the best solar window? (12) Will the cables/wire meet or excede code (NEC)? (13) What type of inverter is required/needed for your solar pv system? (14) What tax credits and rebates are available? (15) Have you considered and energy audit? CONTACT OUR CERTIFIED DESIGNERS BY CALLING 800-222-0017 (24/7) or greenpower@solarpath.com TO GET STARTED...
WE ARE SELLING THE 1KW SOLAR PHOTOVOLTAIC NET METERING SYSTEM FOR $7,495.00 USD...
THIS LISTING IS FOR (5) SHARP ND-216U1F 216 WATT SOLAR PHOTOVOLTAIC (pv) PANELS, (5) 190W 240VAC M190 MICRO INVERTERS, UNIRAC SOLARMOUNTS TO MOUNT THE PANELS TO A ROOF... THIS SYSTEM IS DESIGNED FOR NET METERING/ GRID-TIE APPLICATIONS...
THERE IS A 30% FEDERAL TAX CREDIT OR GRANT AVAILABLE FOR RESIDENTIAL AND COMMERCIAL SOLAR PHOTOVOLTAIC APPLICATIONS WITH NO CAP...
THE BELOW SYSTEM IS A 1080 WATT / 1 KW COMPLETE GRID-TIE / NET METERING SYSTEM WHICH REQUIRES NO BATTERIES... You will need to provide wire from ac branch circuit to ac utility distribution center...
THE BELOW ITEMS ARE INCLUDED IN THIS AUCTION...(all items are brand-new-in-the-box)
Sharp ND-216U1F 216 Watt 24V W/MC Connetor Solar PV Panels
Unirac Solarmount 2-Rail Sets
Unirac Top Mount Clamps - Clear
Unirac Grounding Clips
WEEBL - 6.7 Assembly WEEBLUG w/washier
Mirco Inverters M190-72-240-S11/2 190W 240VAC
Micro Incerter Install Kit K240-01-001 w/ ac branch circuit
Micro Inverter EMU IEMU-01
Micro Inverter Enlighten Residential Plan, 4 Year Service, 60 Inverters
SHIPPING INFORMATION: Will ship these items for a $310.00 USD shipping costs within the Continental US Only, excluding Alaska/Hawaii... PLEASE ALLOW 10 BUSINESS DAYS FOR SHIPPING BY TRUCK...
For shipping costs to Alaska/Hawaii please inquire within... For information on shipping costs for export shipments, please inquire within as well...
SHARP ND216U1F - 216 WATT 24vdc SOLAR PANEL SPECIFICATIONS PER INDIVIDUAL PANEL...
25
Year Performance Warranty by Manufacturer...
Listed
by Underwriter's Laboratories for UL 1703, Fire Rating Class C...
ENGINEERING
EXCELLENCE - High module efficiency for an outstanding balance of size and weight
to power and performance..
DURABLE
- Tempered glass, EVA lamination and enhanced cell performance...
HIGH
PERFORMANCE - This module uses an advanced surface texturing process to increase
light absorption and improve efficiency...
Maximum
Power (Pmax) = 216 W
Tolerance
of Pmax = +10%/-5%
Type
of Cell = Polycrystalline Silicon
Cell
Configuration = 60 in series
Open
Circuit Votage (Voc) = 36.5 V
Maximum
Power Voltage (Vpm) = 28.9 V
Short
Circuit Current (Isc) = 8.10 A
Maximum
Power Current (Ipm) = 7.48 A
Module
Efficiency (%) = 13.3%
Maximum
System (DC) Voltage = 600 V
Series
Fuse Rating = 15 A
NOCT
= 47.5 degress C
Module
Width = 39.1 Inches
Module
Length = 64.6 Inches
Module
Depth = 1.8 Inches
Module
Weight = 44.1 LBS
Type
of Output Terminal = Lead wire with MC Connector - Cable length is 43.3 Inches
These Micro Inverters shift DC to AC conversion from a large, centralized inverter to a compact unit attached directly to each solar pv module in the power system... Distributing the conversion process to each solar pv module makes the entire solar pv power system more productive, reliable, and smarter than traditional inverter systems... Solar power production is affected by various factors such as module mis-match, obstruction shading, inter-row shading, and obstacles such as dust or debris... In addition, non-uniform changes in temperature, irradiance, and shading create complex current-voltage curves, further effecting energy harvest... This is due to the fact that in traditional systems the perfornance of the entire system is dictated by the performance of the weakest solar pv module...
These Micro Inverters solve solar power challenges by performing Maximum Power Point Tracking (MPPT) at each solar pv module... MPPT is an algorithm used to calculate and respond to temperature and light changes detected on a solar power system, and to determin how much power to draw from the single solar module... In contrast, centralized inverter's MPPT algorithm sees the entire solar power system as a single module, and responds to the lowest production numbers it detects... The Micro Inverter's MPPT algorithm works at each solar module in an installation and achieves greater than 99.6% accuracy which enables it to maximize energy harvest at all times, even during variable light conditions... Traditional centralized inverter's implementations create a single point of failure for solar power systems... If the inverter fails, the entire system is disabled... These micro inverters convert power indepently at each solar module, if one micro inverter fails, the rest continue to operate as usual... With a micro inverter system, installers are no longer limited by string design, marginal designs, co-planarity, and matched modules... The space, heat, and noise associated with a large inverter are eliminated...
SPECIFICATIONS FOR EACH INDIVIDUAL M190-72-240-S11/2 (190W / 240 VAC) MICRO INVERTER...
Maximum
energy production...Resilient
to dust, debris and shading...
MTBF
(Mean Time Between Failure) of 331 years...System
availability greater than 99.8%...
No
single point of system failure...Quick
& simple design and installation...
CSA
listed per UL1741 and can withstand surges of up to 6kV...Warranty
= 15 Years
Compliance
= UL1741/IEEE 1547 & FCC Part 15 Class BRecommended
input power (STC) = 230W
Maximum
input DC voltage = 54VPeak
power tracking voltage = 22V - 40V
Max
DC short circuit current = 12AMax
input current = 10A
Maximum
output current = 190WNominal
output current = 800mA
Nominal
voltage/range = 240V/211V - 264VExtended
voltage/range = 240V/206V - 269V
Nominal
frequency/range = 60.0/59.3 - 60.5Extended
frequency/range = 60.0/59.2 - 60.0
Power
factor = >0.95Maximum
units per branch = 15
Peak
inverter efficiency = 95.5%CEC
weighted efficiency = 95.0%
Nominal
MPP tracking = 99.6%Operating
temperature range = -40 degrees C to +65 degrees C
Night
time power consumption = 30mWDimensions
(WxHxD) = 8" x 5.25" x 1.25"
Weight
= 4.4 lbs.Cooling
= Natural Convection - No FansEnclosure
environmental rating = Outdoor - NEMA 6
ENERGY MANAGEMENT UNIT (EMU) - The EMU is the communications gateway device which relays performance statistics from the micro inverters to the Enlighten website (see below)... The EMU collects energy and performance data from the micro inverters over in-home AC power lines... The EMU then forwards data to the Enlighten website via the internet via broadband router... Installation and operation of the EMU requires no special computer or networking knowledge, nor any specialized equipment... It simply plugs into the house router for communication with the Enlighten monitoring and analysis website... After the EMU is installed and completes it's initial scan, it assembles an internal database of all known micro inverters at the site it manages... At regular intervals, the EMU polls each micro inverter for it's energy data... Using your site's broadband router, the EMU then forwards that information on to the Enlighten website... The EMU also reports any error conditions that affects itself or the micro inverters... The EMU is available at an additional cost...
ENLIGHTEN WEB BASED MONITORING SERVICE - The Enlighten web based monitoring and analysis service, analyzes the per module data collected by each micro inverter... Enlighten automatically detcts any shortfall in energy production, identifies possible causes,and suggests solutions to correct the problem... The Enlighten website is constantly monitoring and managing every module on it's site... Enlighten Web Based Monitoring Service is available at an additiional cost, with the service running for four years...
SHIPPING INFORMATION: Will ship these items for a $310.00 USD shipping costs within the Continental US Only, excluding Alaska/Hawaii... PLEASE ALLOW 10 BUSINESS DAYS FOR SHIPPING BY TRUCK... For shipping costs to Alaska/Hawaii please inquire within... For information on shipping costs for export shipments, please inquire within as well...
ELECTRICAL TERMS FOR SOLAR PV AND BATTERIES
AC = Alternating Current; a flow of electrons which regularly reverses its direction of flow... 60 cycles per second is the US standard... One cycle per second is called one Hertz (Hz).... Because of how generators work the switching of peak positive current to peak negative current takes place gradually in a sine wave pattern... Can not be stored like DC in a battery....
DC = Direct Current; a flow of electrons that flows only in one direction, negative to positive... PV's produce DC power... DC can be stored electrochemically in a battery...
Electron = A negatively charged particle which orbits the positively charged nucleus of an atom... Electrons have 1/1837 the mass of hydrogen (the lightest atom), therefore electrons are subatomic!
Electricity = The movement of electrons through a conductor... In conductors, such as glod, copper, and aluminum electrons can be easily forced to break orbit and flow to a new orbit around at a neighboring atom...
Electromotive
Force (emf) = The force that causes electrons to flow because of a difference
in electrical potential (measured in volts)....
Volts (V) or (E) = The electromotive force which will cause current to flow... A standard definition of the volt is: an emf of 1 Volt is necessary to move a current of 1 Amp through a 1 Ohm resistor... A voltmeter measures the difference in potential between two points... It may be helpful to think of voltage to electricity flow as pressure is to water flow... Named after Allesandro Volta the Italian physicist who by 1800 was making the first batteries....
Ampere Amp (A) or (I) = Unit of measurement of electric flow, or current, like volume of water in a stream... A count of how many electrons pass a given point in one second... A closed circuit is necessary for current flow... Named after Andre Ampere, the French mathematician and physicist who quantified electric flow around about the year 1820...
Resistance = Opposition to the flow of current... Unit of measurement is called an Ohm, stated as R, or by the Greek letter omega... All conductors have some resistance, this is necessary because if a conductor had no resistance the connection would be a short circuit with ecessive current flow... Insulators have high resistance and conductors have low resistance... Bad connections (loose, corroded, or dirty) have high resistance and can result in little current flow...
Ohm's Law = Named after the German physicist Georg Ohm who in 1827 described resistance to electrical flow... Expresses the fundamental relationship between voltage, current, and resistance... Current (Amps, or I) in a circuit equals Voltage (E) divided by Resistance (Ohms, or R)... I = E / R or Amps = Volts . Ohms... By using simple algebra Ohm's law can be reattanged a third way: R = E /I or Resistance = Volts / Amps - So to recap: The current flow in a circuit depends on both the voltage of the source (battery, or PV) and the resistance of the circuit...
Power = The amount of work being done... The unit measurement of power is called a Watt (W)... It is named after James Watt a Scottish engineer, 1736-1819... Electric power is simply the product of volatge times current... Watts = Volts x Amps... Can be rearranged as Volts = Watts / Amps and also as Amps = Watts / Volts...
Inverter = A device that converts DC to AC... There are modified sine wave (MSW) inverters, which are in reality closer to square wave than a sine wave... MSW inverters have from 30 to 40% Total Harmonic Distortion (THD), or distortion from a pure sine wave... The utility grid averages, about, 3% THD... A Trace SW inverter has from 3 to 5%, and Exeltech inverter has 1 to 2% THD...
Photovoltaic = PV: Photoelectric, light electric, or solar electric... Principal was discovered by the French physicist Edmund Becquerel in 1839, interestingly one of his relatives discovered the principal of atomic energy some years later... So PV predates nuclear power! It was not until scientists at Bell Labs in 1954 were working on silicon rectifiers (diodes) that the real potential of PV started to become clear... The space race of the late 50's forward gave PV's a niche that they have filled ever since... Because space has unlimited sunlight and PV's are autonomous power sources and are lightweight they have powered all of America's satellites, from tiny Vanguard to the very large Skylab...
Silicon PV Cell = A device that converts sunlight directly into electricity... "When illuminated, the PV cell produces a voltage between front and back... This voltage is developed accross a junction that is built into the cell structure...This voltage can be used to produce a current, just like from a battery, but the amount of current is limited by the amount of light falling on the cell...Richard Komp, PhD (in his book Practical Photovoltaics)
Open-Circuit Voltage (Voc) = The voltage of a PV cell, or module, when measured without a load being connected... It depends on the amount of sunlight hitting the PV but this voltage reading is always higher than the peak voltage...
Short-Circuit Current (Isc) = The maximum current a PV cell can deliver into a short circuit... The number of Amps is directly proportional to the area of the cell and intensity of the Sunlight... This can be measured with an appropriate meter, or meter - shunt combination...
PV, or Solar Module = A series string of 32 to 36 cells, producing an open circuit voltage in bright sunlight of about 20 volts, or about 17 volts whne producing maximum power when connected to a load (battery, wtare pump, etc...) Total current of a series string is the same as a single cell...
PV, or Solar Array = A group of modules combined on a mounting structure... May be wired in series for increased voltage, or in parallel for increased current, or a combination called series-parallel...
PV Charge Controller or Regulator = A device used to prevent the overcharging of a battery(s) by PV's...
Shunt = A low value resitor used in parallel with a meter to increase the amount of current the meter can measure...
Battery = A group of interconnected electrochemical cells... Single cells are considered to be a battery if they are used alone... A battery cell contains an anode, a cathode, and the electrolyte... The nominal voltage of a lead-acid cell is 2 volts... Batteries come basically in two types, lead-acid (wet cell / like auto battery..) and gel cell (which require less maintenance...) Deep Cycle batteries recommended...
Deep -Cycle Battery = A battery specifically made to have up to 80% of its energy capacity removed and replaced repeatedly for many cycles... The paltes of this battery are much thicker than are starting battery plates...
Anode = Is the electrode (plate) within the cell which undergoes the chemical process of oxidation... Electrically, the anode is the cell's positive terminal....
Cathode = The electrode (plate) which undergoes the chemical process of reduction... The negative terminal of the cell...
Electrolyte = The medium of ion (electrically charged particle or molecule transport within the cell... The electrolyte provides a path for electron transfer between the anode and the cathode...
Active Material = The materials which chemically react within the cell to release free electrons... One active material is metal or metallic compound which is oxidized... The other active material, often a metallic oxide, is reduced....
Series = A connection from one cell or battery to another (or from one PV module to another), negative to positive, which results in twice the voltage... Note that the current stays the same when series interconnecting...
Parallel = A connection between cells or bateries (also PV's) to increase the current capacity... The voltage stays the same when we wire positive to positive and negative to negative, but the capacity in battery amp-hrs is the sum of the batteries wired in parallel... With PV arrays parallel wired you add up the amps available from each parallel unit, or set of series wired modules, to get your total current output..
Ampere-Hours, or amp-hrs = An amp hour is a current of one amp flowing for one hour... A term used to tell the amount of energy a battery has before it needs to be recharged... Capacity of a battery... You can convert amps-hrs to watt hours by multiplying amp-hrs by systems battery voltage...
Cycle = One complete charge / discharge sequence of the battery... Deep cycle batteries are rated to last for so many cycles... Such as a Trojan T-105 golf-cart battery will last for 700 deep cycles, and a Surrette CH-375 will last for 1,175 deep cycles...
State of Charge = A ratio, expressed in percent, of the energy remaining in a battery in relation to its capacity whne full...
Specific Gravity, or SG = Is the ratio of a liquid's density of water... Sulfuric acid is denser than water so therefore you can measure it with a battery hydrometer (tool that measures SG) and you can tell as what state of charge your cells are at...
Self Discharge = The tendency of all electrochemical cells to lose energy due to internal chemical reactions within the cells... Also called local action...
Charge Rate = The amount of energy per unit of time which is being added to the battery... Commonly expressed as a ratio of the battery's rated capacity to charge in relation to the time of charge duration... If you have a battery with a storage capacity of 1,000 amp-hrs and your PV array is rated at 50 amps then your charge rate is expressed as C/20 (1,000/50)...
Equalized Charge = The controlled overcharge of a seemingly fully charged battery (many cells within the battery already are fully charged) to bring the weaker cell(s) up to full charge... Should be accomplished every 30 days, or as neede... You can determine unequal cells with a hydrmeter (should be within 15 points lowest to highest reading), or if you have the large individual cells with outside terminals you can check voltage readings across each cell and compare them (should be within .05 volts lowest to highest readings)....
