Today I have taken the time to give an example of a small backup P.V. system
This is for information only , If your handy and understand proper use of basic tools and safety procedures , You can assemble this and be online in a couple of days.
SMALLER TRUE SINE WAVE INVERTERS
A Small True Sine Wave Inverter can solve the problem of a few low-wattage appliances that require only true sine wave power, without upgrading your whole-house inverter to true sine wave. A small inverter can be dedicated to just the computers, a computerized sewing machine or recording equipment. Newly designed for heavy-duty industrial and commercial applications, the Samlex Cotek 600 has two, on board, GFCI protected outlets. Equally robust, the Sure Sine 300 must be hard-wired. Both models offer extensive electronic protection against reverse polarity, overload, short circuit, over/under voltage, and over temp. Two year warranty.
SAMLEX COTEK 600 WATT 12V
600 watts continuous, 680 watts for 3 minutes, and an 800 watt surge. Includes battery terminal lugs that you crimp to 4 gauge copper wire that you provide. Use a 100 amp fuse in the (+) battery cable. No load current consumed is 0.87 amps. Do not connect to an AC breaker panel. On board load controlled cooling fan. Rated operating range:0° to +30° C (+/-10%). Input voltage: 10.5-15.0. 12"x7"x3" 5.4 lbs, UL Listed
I-SAMLEX COTEK 600 12 volt....................$395 (shipping $10)
(This inverter dose not come with a built in charger , denziel)
Solar panels :
MITSUBISHI MF125 UE
UL Listed 25 year Warranty Polycrystalline Silicon Module
High Efficiency; High Reliability; High Safety
Mitsubishi has applied leading-edge technology from its space-related applications to terrestrial systems to create high performance photovoltaic power-generation systems for an astonishing range of installations. Mitsubishi has successfully produced the first cells that do not require solder coatings. This accomplishment is a milestone in the development of environmentally friendly composite materials.
Solder free; Black surface field structure; Anti-reflective coating; with MC4 multi contact cabling
MF125UE-125 watts Amps 7.23 @ 14.4 volts
Open circuit voltage = 17.3
Price $ 595.00 x 2 = $1090.00 + shipping
XANTREX C-35, Charge Controller
C-35 35 Amps; 12 or 24 volt
3-stage voltage control
Series for Solar
or Diversion for Hydro or Wind
2 year warranty
Size 9" x 5" x 2"
Built in terminals accept wire size up to 2 gauge
CONSTANT CHARGE VOLTAGE: Most advanced control method has 3 stages: full solar charge to Bulk Voltage you set as maximum, then tapers off charge in Absorption mode, just enough to keep batteries at, but not exceeding, the bulk voltage you set. After one hour at bulk voltage, a lower Float Voltage takes effect to prevent overcharge.
DIVERSION CONTROL: XANTREX C35, C40 & C60 can be used as diversion control for wind or hydro. To set up as diversion control, order air or water heat diversion resistors.
BATTERY EQUALIZATION: Higher voltage automatically equalizes batteries once a month, or can be started manually anytime, or disabled for sealed batteries.
OPTIONAL DIGITAL DISPLAY of both charge amps and battery volts, plus counts amp-hours of charge since last reset. Highly recommended.
C-35DD Charge Control & Digital Display: $210
B TROJAN T-105 BATTERIES NEW 225 AMP-HOUR RATING
Electric Vehicle or Golf Cart Batteries are easier to lift at 65 pounds each, size 10" x 7" x 11". These are a popular and economical battery for home power systems. This mass produced consumer battery has the best price per amp-hour of any quality battery.
Each battery is 6 volts, made of three 2-volt cells in one unit. Six-volt batteries are series connected in pairs for 12 volts, or in strings of four batteries for 24 volts, or 8 to make 48 volts. Then several of these is 4 to 6 years. 12 month warranty series strings may be parallel connected to add more ampere-hour capacity. Each series string is rated 225 ampere hours, so two strings are 450 Ampere-Hours, 3 are 675 A.H., 4 are 900 A.H., 5 are 1125 A.H., etc. Interconnect diagrams are supplied. Life expectancy.
FREE ACCESSORIES included with Trojan batteries are the Battery Book, and a glass hydrometer. Distant customers call for pick-up locations near you, usually at no shipping cost.
B-T105-RE: This "RE" model has a 5 year warranty. 65 lbs; 10 3/8" x 7 1/8" x 11 3/4" tall; 6v 225 ah
Trojan T-105-RE Batteries & accessories: $150
4 x 150.00 = $ 600.00 = 450 amp hour string $600.00. plus shipping if any.
Backup System basic hard parts = Inverter = $395.00 SAMLEX COTEK 600 WATT 12V
Shipping $ 10.00
XANTREX C-35, Charge Controller $210.00
Trojan T-105-RE Batteries & accessories: $600.00 local pickup
125 watt panels 2x 595.00 $ 1090.00
The accessories for connection of system add $250.00 estimated
basic setup cost =$ 3200.00 D.Y.I.
Installer price add $850 00
I designed this in about 30 minuets and it will be dependable for backup power for basic needs , CFL lighting , radio , small lcd tv , computer and modem ,
This is not a Hard Wired system , (2) 5-15 N.E.M.A. gfic receptacles are built in the inverter and designed for corded devices only.
This system will operate for up to 7 hours at 80% max ratted wattage (about 4 amps@ 120 volts) without charging. Conservation is key in an emergency blackout.