Denali is Athabascan meaning “the high one.”
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Denali in all of its grandeur |
“Denali serves as a barometer for change. As permafrost thaws, glaciers shrink, and tree
lines rise, we feel humbled to care for this living laboratory that is so
critical to understanding the effects of climate change on our global
community.”
Don Striker,
Superintendent, Denali National Park and Preserve
A serious challenge when visiting the
upper reaches of British Columbia, the Yukon, and Alaska is that the most
beautiful settings are in Provincial, State, and National Parks. Traveling in May and June we have experienced
cold night temperatures that have necessitated hard use of our 12 Volt Suburban
Furnace. Such use can drain the house
batteries
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Solar Panel in acation |
quickly without the availability of shore power or using the
generator. Primitive provincial,
territorial, state, and national campgrounds often do not have electrical
hookups and severely limit the hours of generator use. This can make for very cold nights unless
there is a means to keep the house batteries charged. This is where our ZAMP 160 Watt System has
been a great addition to our charging system.
With use of the solar
panel the challenges have been that many of the days have been cold, wet, and overcast
limiting the solar panel’s efficiency.
On the plus side we have 20+ hour days with which to work. Between generator use during permissible
hours and solar power during off hours, we have not had to withstand a cold
night without heat. Before we had solar
panels our house batteries limited our stay, in primitive campgrounds, to two
days if we started out with fully charged house batteries.
One of the truly wondrous
camping experiences, when visiting Alaska, is to stay at Teklanika River
Campground which is located 29 miles inside Denali National Park &
Preserve. Reservation, advised ahead of time, stipulate that to limit traffic
within this wilderness, one must set up and remain for a minimum of 3
days. If towing a dinghy, this is not
allowed in the park and must be unhooked and stored outside the park as well. Generator use is strictly controlled and
minimized so without the means to keep the RV house batteries charged, central
to the RV electrical system, very quickly there will be insufficient power to
run the heater or anything else. This
can result in cold sleeping conditions, no lights nor other amenities. We stayed at Teklanika River Campground for
four days, never needed to employ our noisy generator in this pristine setting,
and kept our batteries charged. We
hooked up our ZAMP 160 Watt Solar panel (procedure supplied earlier – ZAMP
Setup), left it hooked up, and never had to
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Voltage is an indication of the batteries |
worry about our batteries. A nice feature of this unit is that the
control panel has a “smart charging feature” that sends power to the battery as
needed, prevents overcharging, and prevents back draining from the battery at
night when there is no sunlight (not often in Alaska at this time of
year). Additionally, at the control
panel there are display features that allow one to check the condition of their
battery, solar power being generated, and power available in the battery. This readout is pretty straight forward. First, there is a button that allows for the
selection of the battery type. We have
two Group 27M Deep Cycle, Absorbed Glass Mat batteries (AGM). When depressing the “Battery Type” button for
3 seconds on the LCD display, one can scroll through and select the battery
type. If uncertain, just check the
paperwork that came with your batteries or call ZAMP. They are very helpful when going through the
setup process. Next, depress the
“Volt/Amp” button to scroll through and readout battery voltage, charging
current (amps), and charged capacity (Amp-Hour). So what does this mean as you scroll through
the readouts?
First Display – Volts (V) – this is the condition of the battery charge. Without going into the chemistry of the
battery itself, let’s just stay with the 10,000-foot view. As battery energy is employed, hydrogen
present in the battery acid (H2S04) is combined with oxygen to form water. This dilutes the acid, reduces the specific
gravity and this correlates to battery voltage and therefore how much the
battery is charged.
Exact
number may vary as they are temperature dependent
Voltage
Charge Battery
Condition
12.4 – 12.7 or higher ¾
to fully charged Excellent
Condition
12.2 – 12.3 ½
to ¾ charged Good
Condition
12.0 – 12.1 ¼
to ½ charged charge
getting low
Below 12 volts battery
really getting low – needs charging
The less the voltage reading the lower the battery
charge. On the reverse side, as solar energy is fed
into the battery, a reverse reaction takes place, lowing the water content,
raising the acid content, increasing the specific gravity, and this results in
a higher volt reading. The higher the voltage reading the higher
the battery charge.
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Display when the batteries are fully charged |
Second Display - AMPs (A) – the higher the reading, the more sunlight is being
converted into energy for the battery and the faster the battery is charging. This would be similar to how fast the pump is
working when filling your fuel tank.
Third Display - AMP Hours (AH) – the higher the reading the more energy that is
stored in the battery and the longer the battery will supply energy. Again, this would be similar to how full your
fuel tank is after filling it.
Continue to depress this
button and it will again scroll back to volts and repeat the sequence.
When the battery is fully
charged, the display will indicate “FUL” and the smart controller WILL NOT
overcharge the battery which is detrimental to battery life.
Even in a site as beautiful as Denali National Park & Preserve, the ZAMP Solar Panel drew a LOT OF ATTENTION. Generator noise is becoming a display of “poor taste” in primitive, pristine settings so quiet, efficient alternatives to generators is of interest to noise and energy conscience travelers. Has the ZAMP Solar Panel worked for us? Certainly, a resounding YES! This has opened greater opportunities and longer durations of Boon-Docking in government operated campsites and with much less expense. As an example, only primitive government campsites lay within Denali National Park & Preserve. The cost per day for these BEAUTIFUL sites with plenty of space between sites is $15. Private campsites just outside the park are jammed together parking lot style and the cost is $40 per night. Boon-Docking may not be for everyone. If you want cable TV, swimming pools, and all the amenities use the commercial sites…and some are indeed quite nice at other locations and they are very handy if you want to use the laundromat and WIFI. For us, we prefer the government sites far and away from the crowds more often than not. Our ZAMP Solar Panel helps us achieve that objective.
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What you see in Denali when taking the roads less traveled |