Subject: Solar Power Quotation *To: mackeyf@ares.org Frank, the first "fly" has bit. To: Ed Harris From: Mike Bryce Equipment proposal for ARES & RACES emergency services Thursday, January 22, 1998 Specifications submitted by: SunLight Energy Systems 955 Manchester Ave SW North Lawrence Ohio 44666 Phone 330 832 3114 FAX 330 832 4161 E-mail prosolar@sssnet.com B7 Design Goal Energy management for battery based low voltage system To provide 12 volts dc to power communications and telemetry equipment during the day and to recharge battery power for equipment use during the night. B7 Design specifications To prevent damage to the sealed lead-acid battery, this proposed energy management system would provide a combination of constant voltage charging with over-current protection. This will allow the battery to be charged up as quickly as possible, without damage to it or the charging circuits. A brute force method is not practical for charging sealed lead-acid batteries. This method will cause damage to the battery and shorten the life of said battery. There is also the possibility of a battery exploding by using a brute force charging method. B7 Highlights of the battery management system 1. Recharge batteries as quickly as possible 2. Prevent excessive battery discharge at night 3. Portable systems to be light weight and fault tolerant B7 Level I Search & Rescue Portable To provide sufficient current to recharge specified battery, a 20 watt Solarex Lite module would generally be used. Solarex Lite MSX-20 Specifications: Power at full sun: 20 watts Current at peak power: 1.17 amps Voltage at peak power: 17.1 volts Length: 24.3 inches Width: 19.5 inches Weight app.: 4.5 lbs. MSX-20 uses polycrystalline cells laminated to stainless steel backing with a polymer encapsulate. The panel is about 3/16 inch thick. A grommet is installed in each corner for hold the panel in place if permanent mounting is desired. System note: If solar panel is to be connected to the battery all the time, a charge control system should be installed to prevent damage to the gel stabilized battery. Pricing: Solarex MSX-20 Lite $186 SunLogic Micro "M" controller, if used, $20 B7 Level II Mobile VHF/UHF cross band repeater systems Solarex VLX-32 would provide the minimum amount of power required by Level II. However, its low profile frame would reduce overall system weight. Solarex VLX-53 would increase amount of power generated without increasing weight or system foot print over the VLX-32. Solarex MSX-64 would provide greater recharge current. Specifications: Model: Current (A) Voltage (V) Length Width Weight Cost $ peak pwr peak pwr (in) (in) (lbs) Solarex VLX-32 1.86 17.1 23.5 19.7 7.7 220 Solarex VLX-53 3.08 17.1 36.9 19.7 12.0 295 Solarex MSX-64 3.66 17.5 43.8 19.8 15.9 385 Level III Mobile command center For the design load, and as well as weight, recommend the use of multiple Uni-Solar US64 modules, with four recommended. (Price each: $335) Specifications: Rated current : 4.4 amps Operating voltage: 15.6 volts Length: 53.8 inches Width: 29 inches Weight: 20 lbs. Systems notes and comments Many of the loads stated will exceed the ability of the stated number of solar modules to maintain the batteries in a full state of charge. Due to varied weather conditions, it is generally considered only about 70 to 80 percent of full sun is available at any given day. All specifications are for full sun or 1000 watts per meter squared at 25 degs C. Given the high amp hour battery capacity in Level II and Level III, a charge controller would not be needed. However, if the system is allowed to be charged all the time with the solar panels, and no loads placed on the batteries, there is the possibility of battery damage. Uni-Solar modules are thin film or amorphous type modules. They require a large surface area than either single cell or polycrystalline cells. All solar modules except for the "Lite" module have standard weatherproof junction boxes installed on the rear of the panel. These junction boxes will accept standard 1.5-inch conduit fittings. Condition of sale This design is for evaluation only. SunLight Energy Systems has the right to change to modify any and all specifications. SunLight Energy Systems maintains the right to refuse the sale if its equipment. Payment On all orders, 50 percent down at the time of the order. Balance due at delivery. Net 30 terms available to qualified companies. Warranty For a period of two (2) years after purchase, SunLight Energy Systems will replace or repair free of charge any energy management system controller that is defective either in materials or workmanship. SunLight Energy Systems warranty does not cover and we are not responsible for any damage caused by misuse, fire or by unauthorized modifications to our products or any use of our products are not designed for other than advertised. Under no conditions are the products of SunLight Energy Systems to be used in life support equipment. The SunLight Energy Systems warranty does not cover or include reimbursement for customer assembly or set-up time. Or the same by others and paid by the customer. Nor does the warranty include shipping and handling charges to and from SunLight Energy Systems. SunLight Energy Systems is not responsible for incidental or consequential damages. This warranty gives you specific legal rights and you may also have other rights, which vary, from state to state. Solar modules are covered by the warranty of the manufacture.