Oasis Montana Inc.
Renewable Energy Supply and Design
406-777-4321or 4309
e-mail: info@oasismontana.com
Home Page: www.oasismontana.com

Visit us on the web for product and project information!
For grid-tied power systems, www.grid-tie.com
Solar water pumping:  www.PVsolarpumps.com
Non-electric gas appliances, www.LPappliances.com
Efficient and DC appliances, www.eco-fridge.com
And our main page at www.oasismontana.com


Oasis Montana Spring 2007 Newsletter
Page 1 - Backup Solar Power System

BATTERY BASED, GRID-TIE BACKUP SOLAR POWER SYSTEM:

Ice storms, earthquake, hurricane, floods, or squirrel in the transformer…it does not matter what causes it, a power outage is inconvenient at the least and can become costly and dangerous if it goes on for more than 24 hours. While a gasoline-powered generator is often the most popular backup power choice, fuel may be scarce and expensive during a prolonged outage. Gasoline fueled generators also require maintenance, and they can be noisy and dirty.

How would you like a backup power source that is clean and quiet, doesn’t require any fuel to purchase, and can reduce your monthly electric bill when you aren’t using it? That is what a battery based grid-tie solar power system featuring Outback’s PS1 system pictured to the left can do. The PS1 incorporates a single 48V - 3.6 kW grid-tie sine wave inverter, 60 amp MPPT solar charge controller and the required AC & DC disconnects all pre-wired in the upper outdoor rated NEMA 3R enclosure. The bottom enclosure houses 4 deep-cycle sealed AGM batteries that can provide enough energy storage to run an efficient refrigerator for two days.

If you connect a solar array to this PS1 system, that would extend the amount of time you could run your critical AC loads (well pump, refrigerator, lights, etc.) during a utility outage. While utility power is available, this solar power system will keep the batteries fully charged and sell the excess solar power back to the utility company which lowers your monthly bill. We have put together a small sample system quote below so you can see what a system like this will cost. Of course there are a few variables, such as solar array size, type of mount structure, and battery size that can affect the cost of this system as well as its performance. Keep in mind that there is a $2000 federal tax credit available for purchasing and installing this type of system during 2007, and there may be more state incentives in your area available as well (visit www.dsireusa.org for more information). Please give us a call if you have any questions about this system or if you would like us to prepare a quote on a larger or different battery based grid-tie system. We need to know what you want to power and for what length of time.

1 Outback PS1-3000 inverter/controller/disconnect in NEMA 3R enclosure
1 Outback PS1 BE battery enclosure
4 Concorde PVX-1080T 12V 108 amp-hour sealed AGM batteries
3 #2/0 AWG 16” black battery interconnects
1 set of two #2/0 AWG 10’ inverter cables
4 Sharp ND-L3EJEA 12V 123W multi-crystalline solar modules
1 eight module top-of-pole mount structure (4” ID SCH40 steel pipe required)
4 30” #10-2 and one 30’ #10/2 module interconnects
1 Outback PSPV combiner box with one 15A breaker & SOV

Call for current system price.

On average the four Sharp solar modules will produce ~1.3 kWh of energy per day with 4 hours of full sun while the four Concorde batteries will provide 2 days of storage to 50% depth of discharge at the
consumption rate of 1.3 kWh per day (depending on your location).

All through the long winter, I dream of my garden. On the first day of spring, I dig my fingers deep into the soft earth. I can feel its energy, and my spirits soar.” —Helen Hayes
 
 
Now in autumn, we are enjoying cool and wet (even snowy) conditions, but it was one hot and smoky summer and fall for many parts of the western U.S., and Montana was no exception. We were smug with our good snowpack, back in spring. Then our summer started with a week of 100+ degree weather, and continued to stay hot. We were blanketed in smoke from the horrific fires (1.3 million acres burned) until the middle of September, and unfortunately, many homes and a few lives have been lost. We have been able to help some people with water pumping to protect their properties, but our drought conditions and warm temps made for a very dry western tinderbox. If only those folks in Texas could’ve share perhaps 1/20th of their deluge from their state…

Even so, the garden and fruit trees kept us busy, and despite the smoke we still enjoyed camping, fishing, and canoeing in our local river (even though the water was quite low). We hope our legislators will work on commonsense future measures to mitigate the effects of warming temperatures and prolonged drought. One thought we have had (since we were less than a mile from our local small airport, a helibase that launched many helicopters and other aircraft for fighting fires) is that actual planning for these events would be a good idea (seeing as they are now part of our new normal)—how about reservoirs near these airports to make hauling the big buckets faster and more affordable? Here in Stevensville, we have several large irrigation ditches in close proximity to our airfield…. Well, it’s just my 2 cents worth!

PICOCELL controller inverter for array-direct water pumping for your 240VAC AC pump
In this issue we have some new products to share; one is an exciting new AC pump controller/inverter that can run your 240VAC (or 120V, or 3 phase, or 230VAC 50 hz) 1/3 to 2 horsepower pump directly off of a solar array – click here for more information on the PICOCELL controller/inverter (cost: $1220 plus shipping). This exciting new technology is designed for off-grid use, or emergency back-up. We have installation manuals, spec sheets, and pump kit information on our water pumping site.  Call or e-mail for more information.

New, small Energy Star rated AC refrigerator
We also have a new, small AC refrigerator, 7.1 cu.ft. for your home or cabin, the CP972SS. It’s a great size for space-limited kitchens, only 22”W x 22”D x 57”H and will sell at the great price of $459 plus shipping. With its lean size, the CP972SS is the ideal refrigerator for studio apartments, yachts, offices, and other settings in need of reliable cooling in a slim-fitting footprint. Visit here for more information on this and other (larger) refrigerators.

The best nuclear generating station is 93 million miles away, and is available for pretty much everyone!
Thomas Edison quote on Solar Energy

Iron Edison Batteries
We also have a new line of batteries to offer, manufactured by Iron Edison;
visit our information on this exciting new product line.

WHY IS THE PRICE OF SOLAR MODULES LIKELY TO INCREASE?

The International Trade Commission (ITC) is responding to a lawsuit brought about by SolarWorld and Suniva (U.S. module manufacturers) that low cost imported (i.e. Chinese) solar modules have hurt their competitiveness, so they are asking for a tariff on imported solar panels to ‘level the playing field’. Many pro-solar groups are opposing these tariffs, as they will increase the dollar-per-watt cost of installed solar power systems, and very negatively impact job growth in the solar sector – which had been bourgeoning in the past few years. In fact, it is estimated that 1 out of 50 new jobs is in the renewable energy sector. The ITC has approved tariffs, but it will be up the President Trump to set the rate; those of us in the industry are waiting to see what will happen, and many jobs are on hold pending the decision. It sounds like costs may go up 10% to as much as 40%. For more information visit:  https://pv-magazine-usa.com/2017/10/31/breaking-usitc-recommends-quotas-tariffs-on-crystalline-silicon-solar-imports/  

Renewable Energy (and related) news bites

             1912 Warning on coal cuasing climate change

 

QUOTABLE QUOTES:

  • When autumn darkness falls, what we will remember are the small acts of kindness: a cake, a hug, an invitation to talk, and every single rose. These are all expressions of a nation coming together and caring about its people.
    --Jens Stoltenberg
  • Designers want me to dress like Spring, in billowing things. I don't feel like Spring. I feel like a warm red Autumn.
    --Marilyn Monroe
  • The cost of solar energy has not been opened up because the oil industry does not own the sun.
    –Ralph Nader
  • The spring, summer, is quite a hectic time for people in their lives, but then it comes to autumn, and to winter, and you can't but help think back to the year that was, and then hopefully looking forward to the year that is approaching.
    –Enya
  • A kestrel can and does hover in the dead calm of summer days, when there is not the faintest breath of wind. He will, and does, hover in the still, soft atmosphere of early autumn, when the gossamer falls in showers, coming straight down as if it were raining silk.
    --Richard Jefferies
  • I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!
    --Unknown
  • I prefer winter and fall, when you feel the bone structure of the landscape - the loneliness of it, the dead feeling of winter. Something waits beneath it, the whole story doesn't show.
    -- Andrew Wyeth
  • There has been a systematic repression of solar energy. It seems pretty funny to me that the government, if it is completely neutral--why wouldn't they pursue this far safer alternative of solar energy with the same intent that they pursue nuclear energy? Solar power is the last energy resource that isn't owned yet--nobody taxes the sun yet.
    --Bonnie Raitt
  • The problem with winter sports is that--follow me closely here--they generally take place in winter.
    --Dave Barry
  • If we had no winter, the spring would not be so pleasant: if we did not sometimes taste of adversity, prosperity would not be so welcome.
    --Anne Bradstreet