Solar lights [battery powered - solar charging]
powered water pumping
Friday March 30, 2012 13:31
1, 2012 10:42
|Tuesday May 1,2012 14:15
from Mr Sweet as of 14:13 Tuesday May 1, 2012
'PNM Unveils Renewables Plan' By Michael Hartranft / Journal Staff Writer on
Tue, May 1, 2012
The REC payments were restructured in 2010 to start at
12 cents a kilowatt-hour for small systems typical rooftop systems up to
10 kilowatts and 14 cents a kilowatt-hour for larger systems, but to
decline by 1 cent as participation thresholds were met. Both are at their
5-cent floors now.
Under the new program supported by the
Renewable Energy Industries Association of New Mexico REC payments for
small systems would start at 4 cents a kilowatt hour and 5 cents for larger
programs, then drop by a half cent every six months to a floor of 2.5 cents.
Energy efficiency forums
Ohio solar project passes federal environmental review
|Friday April 27, 2012 18:40
Thanks for clarification email.
[a]nd backwards when you are producing energy from your
solar modules ...
Mr Spiller wrote
The Rural Electric Coop's are working on developing the
one meter set up that reverses or goes backwards ..
mean that the Rural Electric Coop's are unaware that PNM already has such a
Will PNM's meter, photographed by an Affordable Solar employee on
September 1, 2011,
run backwards if more solar
generation of electricity is produced than our home consumes?
power goes out to a home on a sunny day and a solar system is generating more
than that home is using will power remain on in the home?
[l]et me know if you have any more questions or would
like me to come out and give you a solar site evaluation.
and Affordable Solar gave quotes and Affordable Solar provided installation
Decision was to invest in landscaping before home-sized
solar generation of electricity.
Evaluation of garden solar powered
water pumping is in progress, however.
Your comments on an evaluation of
home PV generation of electricity vs gasoline-powered generator I plan to write
would be valuable.
From: "Travis Sweet"
Thursday, April 26, 2012 6:29:45 AM
Subject: Re: Clarification need.
Good Morning bill,
I did not explain myself very well. There
are 2 meters.
1. net meter, this spins forward when using electricity
from the grid and backwards when you are producing energy from your solar
modules. If you produce more energy than you use PNM will owe you a credit if
you use more energy that you produce you owe PNM $
2. REC meter this
only meters the production of your solar array. it spins forward when you are
producing energy and does not take your usage into account at all. PNM will pay
5 cents for every Kw you produce according to the REC meter.
Sorry if i
led you to believe something else and I hope this clears it up. let me know if
you have any more questions or would like me to come out and give you a solar
site evaluation .
Sent: Thursday, April 26, 2012 7:06:34 AM
Re: Clarification need.
Hi Bill & Travis,
The two meter set
is the standard that is used in New Mexico, electric building codes for
grid-tie renewable energy systems. There are the two recording options that you
mentioned. The Rural Electric Coop's are working on developing the one meter
set up that reverses or goes backwards and the other is the REC meter but right
their meters are one for grid usage and the other records renewable energy
produced. We pay $.132 /Kwh for the COOP's power. PNM is cheaper and does
things in thier own way.
Hope this muddies the water for you, let me
know if you have more questions.
Sunsmiths Ltd Co
505-281-8104 Home / Office
In a message dated 4/25/2012 9:25:52 P.M. Mountain Daylight Time,
Hello Mr Spiller,
|Monday April 30,2012 13:51
|Monday April 30,2012 06:55
Harbor Freight May filer
The solar panel is advertised to
produce 1.2 W.
Battery charging and now water pumping are apparently good
applications for solar generation of electrcity.
application is under investigation because of possible motor damage at low
Also in the flier is
Owner gets 3.2 kW for about $300 plus gas - if it is
|Sunday April 29, 2012 Harbor Freight visited for
Both look to be hot sellers? Maybe for reason that people
are becoming concerned about reliable supply of PNM electricity?
compare cost and availability of solar generation of electricty with the
3.2/4.0 kW portable generator.
CST and Affordable Solar have provided
numbers for solar.
Thursday April 26, 2012 06:12
Water oozed out of both
solar water pump on Wednesday April 25, 2012 when it was cloudy. Pacific
Hydrostar may not have included circuit to shut off power to pump under low
volatage/low current conditions?
Looks like we need to monitor voltage
and current to see what is happening.
|Solar Water Pumping: A Practical Introduction How It Works by
Saturday April 21, 2012 we attended the Home and Garden
One of the solar booths visited was
Person manning booth said
that the electricity produced by the solar system NOT CONSUMED BY THE HOME is
Information verification phone call Wednesday April 25,
2012. Volunteered information that the meter spins backward.
Grid tie solar generation of electricity systems input
all electricity to the grid, we have also been told. None of the electricity
generated by the home system is directly used at the home, we have been
Listen to conversation Michael Spiller of Sunsmiths about
Sunday April 17, 2011 09:17
Sunsmiths Ltd. Co.
Hello Mr Spiller,
From your experience with wind and solar generation of
electricity, I would appreciate comments.
sent Tuesday April 24, 2012.
Enchanted Solar phone several minutes after above email sent.
000007- UT was discussed at the Enchanted Solar booth at the homes and garden
John said that he had to do and installation and did not have time
to talk. But would phone in the evening.
No phone call
Toward Energy Literacy
|Tuesday April 24, 2012
Solar panel angle understanding is made simple by water pumping
For maximum solar production of electricity the panel must
face the sun. Deviations of 0o to about 20o do not seem
to make much difference.
Observation of solar panel angles range from
about 0o at Santa Rosa lake part to about 60o with BNSF
MCT roof top 80 kW solar grid tie panel angle is
30o, we were told by 310 Solar. MCT is a government
Our solar water pump angles vary between 0o to
90o for optimal pump performance - water being vigorously pumped.
Morning full-scale pumping commencement is about east facing
60o since morning sun is blocked by Sandia mountain.
water pump panel mounted at 60o facing south, not much water would
Solar generation of electricity systems which track the sun
should be much more efficient - and complicated - than those with fixed panel
Solar lights with panels mounted at 0o or slightly
inclined like the One Stop Garden fence lights work okay. So correct panel
angle appears to depend on application.
So if a company's application is
make money from panel sales, installation, and maintenance then solar panel
angle is unimportant.
Customer is left with a system that doesn't
produce much electricity for cost of system and produces it at a time of day
which the electricity is not useful. Then the customer must figure out its safe
disposal and site remediation.
Water level too low causes bubbles.
Probably not good for motor since motor is water
cooled and bubble make good insulation from the water.
Concern of effect
of low voltage on electric motor life causes us to look for low flow, as
opposed to no flow circuit.
Solar water pumps are specially designed to utilize DC
electric power from photovoltaic panels.
They must work during low light conditions at reduced power,
without stalling or overheating.
Dim illumintion causes low
flow. Shaddow on panel, however, causes pump to quit.
Note solar panel facing west at about
While these photos were taken, white wing dove flew
from palm yucca in front yard and landed solar panel. It then descended to
ground. Next it hopped on edge of planter. Than flew to 'conversation table' to
emerse it head in the water. Dove then returned to palm
Solar panel is mounted 90o late in the
Four soot snake observed heading
south near patio 9 foot windows.
Diamond back rattlesnakes are seen but this was not one of
Later the snake climbed with about four foot wall, started to
reenter the back yard, changed its mind, then proceeded slowly to the east on
|Wednesday April 18, 2012 09:24
Solar works fairly well for charging batteries -
especially those that charge NiCds for solar lights.
Gate opener battery
charging works fairly well too.
troubleshooting goes into detail bad things that can happened to battery
Pumping water may be another application for
Pump appears to slow down in dim illumination. But Friday
April 20, 2012 it was working very well
Original battery on free 98025 [red on/off]
meter died. 98025 used to have fuse solder to board. Note socket.
And microcontroller direct chip attach - blob of
Calibrated solar panel [267 ma isreone sun manufactuer claims]
read about 154 ma or about .577 Sun
The insolation of the sun can also be expressed in
Suns, where one
1000 W/m2 at the point of arrival, with kWh/(m2·day)
displayed as hours/day.
Covering just a small portion of the solar panel causes the
pump to quit, not slow down.
Under voltage apparently does bad things to
electric motors. Let's investigate what Pacific Hydrostar did to abruptly
turn off the motor when the voltage decreased.
Note free 9 LED flashlight. Three AAA batteries power
We're thinking of trying to charge the flashlight batteries
using solar while measuring currenta and voltage progress.
|Speculation that One Stop Gardens used the solar panel to detect
dark condition appears incorrect.
Note apparent light sensor at bottom of solar
Zero volts measured across the solar panel when
When charged battery inserted, LEDs
Further investigation warranted.
Solar generation of
electricity works, in some cases, to charge batteries.
Solar irradiance meter calibration conversation with Mr Stuart
Bowden on Tuesday April 10, 2012.
NiMh battery charged with
Harbor Freight Universal Fast Charger.
voltage quickly dropped to
1.08 volts BUT LEDs were buring as bright as
initial 29 hours 44 minutes later!
Here is after 47 hours and 59
Note that volage across battery had dropped to
1.06 volts but the current is 28.84 ma. IR drop across load resistor became
hard to read because of apparent meter stability problems.
10, 2012 .79 v -.970 ma LEDs dim but visible, 73 hours, 31
2,000 mAh NiMh battery tested. Visit to Harbor
Freight on Monday April 9, 2012 revealed that the NiCads are rated at 800 mAh.
But this is long enough life to power two LEDS for a typical night.
voltage damage of electric motors
is of concern if solar is used directly to power water pump
or if solar is used to charge batteries which power pump.
batteries with solar is another issue we are studying.
Reviews fun to read, especially
I recommend you go out and buy 'em. The are a really
good deal and does the job at the best price ! I use them in Jamaica, to
provide my appliances with power during power outages (very frequent here).
Used with solar panels and DC to AC inverter, of course. Considered using a
too many accidents here with generators, too noisy, too
bulky, and during hurricane aftermath, fuel is a problem. Solar is freely
available, so it was the BEST option all round.
Gardens solar fence light application.
Solar light [battery powered, battery charged with solar
panel] is attach to snap rock with doulbe-side sticky foam tape.
Serious study of how the calibrated solar panel
examines the current and voltage outputs as a
function of irradiance. Questions of how the panel was calibrated and its
proper use have not been answered as of Monday April 9, 2012.
back of calibrated solar cell are written 267 ma and .58v.
The short-circuit current is the current through the solar cell
when the voltage across the solar cell is zero (i.e., when the solar cell is
panel insolation measurements.
3 five watt solar panels purchased
from Harbor Freight to try to verify Fast Neutron's assertions sit
Now that One Stop Gardens has demonstrated what good battery
chargers solar can be, we're considering a garden solar water project be
realize that over and under voltage can cause problems.
|Wireless digital weather station sensor fell on concrete because
double sticky tape failed.
Case broke open so
Note direct chip attach.
Unit did not communicate
with station opn Friday afternoon so we figured it died.
morning April 7, 2012 it was communicating! But at maximum distance of only a
foot or two we later discovered,
looks to be an amazing company.
Especially when price
Saturday April 7, 2012 06:49
|What's the difference between a NiMH battery charger and a NiCd
The biggest differences are in the charge rate (how fast the
charger can charge batteries) and the charge control (how the charge determines
when to stop the charge). Many of the inexpensive NiMH battery chargers are
simply NiCd chargers that have been modified slightly. Typically a 5 hour NiCd
charger has a switch that allows the charge time to be increased from five
hours to eight hours. Thus a 5 hour NiCd charger becomes an 8 hour NiMh
charger. As we mentioned above, we do not recommend this type of charger
design. While a timer type charger is less expensive to manufacture than a
smart charger, it can lead to overcharging and battery damage if batteries are
frequently charged before they have been discharged (that is, the batteries are
used for a short time and then fully charged again).
NiMH smart chargers have actually been designed to detect when
a NiMH battery is fully charged and then shut off or go into a trickle charge
mode. Because of the more complex circuitry, this type of charger costs more to
make, but should lead to greater battery life. Some of these chargers only cost
slightly more that the "dumb" chargers. We strongly recommend investing in a
smart charger for your NiMH or NiCd batteries.
Thursday afternoon April 5, 2012 high clouds caused low
Low cost [$0] IR drop multimeter replace with expensive
[< $20] meter because we saw the 1/100 volt digit changing from zero to
Cfl is ON.
Cfl is OFF.
Ambient light on solar panel greatly affects
The 6608A 11163 is the
Color code on resistor was hard to read but this is
Not mentioned on audio but we're running the
LEDs until they extinguish. So far they have been running 17 hours and 46
|Thursday April 5, 2012
Wednesday evening switch for LEDs
was inadvertently left in ON position for a while, then turned
1.37 volts battery is impressive from solar panel
9v battery on autoranging dmm died. It was replaced before
charging with LED switch in OFF position.
Note impressive 44.1 ma charging current. -0.31 volts across
diode which protects battery from trying to power the solar panel when it is
We can't see the battery voltage, which I believe is 1.41
Listen to my audio where I read the meters. And discuss the
Solar Trust bankruptcy.
|Wednesday April 4, 2012 13:42
Energy Harvesting Suits Remote Low-Power Devices
stresses matching power source with load.
Wednesday April 4, 2012 at about 06:45 cfl was turned on to
Battery voltage measured by meter 13 reads 1.24
volts and the current is 4.78 ma.
The light is turned off
the current goes to 29.03 ma. Do the LEDs seem brighter?
Can't read the battery voltage but the IR drop appears to be 2.6
Experiment repeated at about 08:00 since we can't read battery
voltage. Light off.
Sunny today as opposed to snow and clouds on Tuesday. So
let's soon start the charging portion of our experiment.
Audio segment 2.
outside for charging.
Audio segment 3.
Autoranging LCD could turned black and could not be
read after returning with load of cobblestones. So
Panel angle causes current to vary but
not so much voltage.
Tough to photograph all meters display but here is
a mid day amp reading
Unfortunately, we can't read the
Late day photo.
Notice impressive voltage of 1.40 volts but only .69
Midday photographing goof.
|Tuesday April 3, 2012 21:29
Google 'solar lights
Solar Trust of America, a German company developing one of the
worlds largest solar power plants near Blythe, this week filed for
Chapter 11 bankruptcy protection, raising questions about the future of its
|Tuesday April 3, 2012 test of One Stop Gardens solar fence light
Meter 13 measures voltage across the Ni-Cad battery.
measures amperage - note polarity changed at junction to meter.
IR drop across resistor.
15 measures voltage drop across diode.
12 is used to prop-up right hand side of cardboard
Switch is on and solar panel covered.
16 shows .2
14 shows IR drop of .14 volts.
15 shows diode drop to 1.28
13 shows battery drop to 1.33 volt from 1.34 volts when there was no
Switch is on but solar panel is
slightly illuminated from lamp. This caused the two LEDs to
Meter 16 indicates that no current is flowing but 13 shows
that the voltage across the battery has increased to 1.35 volts.
shows that there is no IR drop across the resistor.
15 shows that the
voltage across the diode has decreased to .86 volts.
initiating discussion of above.
Return to experiment to see what the current read was,
cfl desk lamp was turned off. The LEDs got lots brighter!
was apparently illuminating the solar panel.. Here's a photo showing the
current has increased to .4 amps while the voltage across the battery has
decreased to 1.31.
The IR drop meaured by 14 increased to 1.28 volta and diode
voltage on 15 increased to 1.25 volts.
Solar is NOT BORING.
Fraud is exciting too. :-)
And we are investigating possible
large-scale solar generation of electricity fraud.
Money is to be made
selling solar panels, inverters, installing systems, and maintaining
Not much money is made selling electricity produced by
But, hey, are we NOT selling electricity with One Stop Gardens
off-grid battery-powered and solar charged light systems.
measuring 16 free digital multimeter replaced with expensive [< $25]
We'll just swap out meter 16. We did. Everything
stopped working. After trying to fix, we rewired.
Heard of 'spaghetti
code'? This is the hardware equivalent.
Meter 13 is measuring the
voltage across the battery
Autoranging meter is measuring current.
measures the IR drop across the resistor.
15 measures the voltage drop
across the diode.
The LED switch is off and solar panel not
Switch is on.
26.85 millamps are passing through the resistor.
IR drop across the resistor is .24 volts.
The voltage across the diode
is 1.07 volts.
This is the night time condition when the LEDS are on the
an battery IS NOT powering the solar panel.
The switch is off and the
solar panel is illuminated.
The voltage across the battery has risen to 1.36 volts. 3.71
milliamps is flowing into the battery
0 Volts IR drop.
is now across the diode apparently indicating that it is supplying voltage to
Switch on and panel illuminated.
The 4 lead 6608A semicondutor apparently has as its function
to turn off the LEDs when the battery is charging? This is the daytime
condition when the fence light is in auto mode.
PRC commissioner Jason
Marks, a sociology graduate from liberal arts Reed College, sent bill an email
explaining why large scale solar generation of electricity is not a
Time to respond to that email is approaching?
One Stop Gardens may have done something brilliant by
pointing out that solar generation of electricity must be paired by what it is
And turning off battery draw while batteries are charging
during the day.
Electric motors are reported not to do well with low
Over voltage is reported to damage batteries.
to find out how solar generation of electicity solves these
Using solar generation of electricity to power
old-style loads may, in fact, be a fraud?
We will see. Albert Gore
willing, of course.
We're considering turning on LEDs tonight to see
what happens to battery tomorrow.
After starting our Timex Ironman 6805
computer watch chrono, of course.
Then let's try to recharge in the sun.
With all of the digital meters running, of course.
|Tuesday April 3, 2012
Number 2 of four fence solar
3x magnification. Two white LEDs. one resistor,
one diode, switch and four pin semiconductor see to the right of S+ and S-
Board modified with test points to measure voltage drops across
the diode and resistor.
Battery holder is to allow a digital ammeter to
be inserted in the ciruit.
30 gauge wire soldered to each end of the diode and
resistor terminated with T44 pins allowed preliminary view of how the circuit
When the sola panel is darkened, the two LED
illuminate and are powered by the Ni-Cad battery.
When the solar panel
is illuminated, the LEDs are extinguished and battery charging presumably
Video of above battery operated LED with solar charger
|Saturday March 31, 2012 09:05
India's Solar Excitement: Proceed with Caution
Landscaper Shane [google 't4 landscaping'] wants to add
Non-fraudulent application of solar include calculators,
battery chargers for alarm clocks, gate openers, train signals,
Large-scale solar may be a scam. We continue to
Note free digital multimeter.
Charging circuit is of interest.
appear not to match what is inside solar light.
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