Green-Trust.Org » pv

Setting the posts for the solar array

Steve Spence — Thu, 06 Nov 2008 13:08:32 +0000

Today we are picking up two 10′ sections of telephone poles for the posts for the new solar array. The phone company removed a pole that was broken at the base, and gave us the rest of the pole, cut in 10′ pieces. We will dig a hole 4′ deep, drop in the post, and fill the hole with concrete. a rock at the bottom with some concrete put in first will keep the post off the dirt at the bottom of the hole.

The top of pole array mounts we received are too small for the new panels (there was a mix up somewhere), so we wll mount our old Mitsubishi 110 watt panels first, and then when the second array mounts come in, we will mount the new Sanyo 195 watt panels. In the meantime, we will put the Sanyo’s on the old wooden fixed array mount that currently holds the Mitsubishi panels. We have a second Outback MX-60 charge controller coming in to handle the second array. This will bring us up to 1720 watts of pv, from 550 watts.

Top of Pole Solar Mounts

Steve Spence — Fri, 24 Oct 2008 21:21:40 +0000

The Pole Mount for our new solar panels just arrived. The UPS driver took one look at the panels that were laid out, and commented as he handed me the boxes, “Toys for boys?”. Oh Yeh!

The pole mount is from Iron Ridge, and will hold up to eight panels, but only six panels of this size. Next year, when we get another six panels, we will put up another pole.

The pole is a 10′ piece of used telephone pole, courtesy of our local phone company. It has yet to arrive.

Solar PV Upgrade

Steve Spence — Fri, 24 Oct 2008 12:47:40 +0000

Our new Photo Voltaic Solar Panels arrived this week while we were in Ft. Benning, Georgia. We were there attending our Son’s graduation from Infantry Training.

The six Panels are 195 watt Sanyo Hybrid panels. These panels have a amorphous layer over top the mono crystalline layer, and work well in cloudy and overcast weather as well as bright sunny weather. It was in the high 20’s last night, and the sun is low on the horizon, so a 1200 watt boost to our existing 550 watts will be appreciated. This will greatly reduce our propane usage and generator run times, and keep our house batteries fully charged for longer periods of time. I’ll be posting pictures and desciptions as we install them, and will be updating our DIY Solar Power Installation ebook at http://www.green-trust.org/ebooks/.

Monitoring your off grid power system

Steve Spence — Thu, 02 Oct 2008 12:12:47 +0000

We use a multifunction display from Outback called a Mate to monitor the operation of our charge controller, our inverter, and our battery bank. We have another shunt coming in so that we can monitor the wind turbine and solar independently. But what about logging and historical performance. It would be handy to be able to compare monthly and seasonal performance. Our Mate has a serial port on the side for connecting to a computer, so we are evaluating 2 software packages that will allow us to track and record the complete operations of our system.

The first is WinVerter-Monitor OB from http://www.righthandeng.com, and the other is WattPlot from http://wattplot.com/index.htm. We will let you know about the strenghts and weaknesses of both.

DIY Solar Install Guide – Now Available

Steve Spence — Sun, 30 Mar 2008 22:38:56 +0000

Our guide to installing your own power system is finished, and available on our eBook page at http://www.green-trust.org/ebooks/

Covering Sizing, siting, installation, and battery maintenance, it’s a good guide to putting together your own inexpensive system. Includes private discussion group and free updates.

Anguilla Solar

Steve Spence — Thu, 27 Mar 2008 02:11:00 +0000

We just got back from our trip to Anguilla. We helped Francoise set up her new solar power system. Two Kyocera 130 watt PV panels, a Xantrex C35 charge controller, a Trimetric Battery Meter, a Morningstar Microsine 300 sine wave inverter, and a 70 ah AGM battery, power up 3 Compact Fluorescent Lights, A LG WP-680N Washing Machine (260 Watts) and a Shurflo 12v pump. Two weeks of testing, and we were never able to pull the battery below 12.4 volts. The system consistently output 1.5 kWh’s daily. More pics at http://www.green-trust.org/Anguilla Solar/.

Solar Install in Anguilla

Steve Spence — Sat, 08 Mar 2008 15:25:00 +0000

We are off on our trip to Anguilla to do a solar install. Be back in 2 weeks, and expect to have a tan. Will post pics when we return. The install consists of two 130 watt panels, 35 amp charge controller, 1 AGM 70ah battery, a 300 watt sine wave inverter, and a 12 volt shurflo cistern pump. See pics of last weeks solar install at Woodhenge.org

Solar Powered Lighting

Steve Spence — Mon, 04 Dec 2006 22:54:00 +0000

We recently blogged about a LED headlamp on our Eco Tips page , but since we are so enamored with this item, I felt it should be mentioned here as well. With 6 brightness levels, and two strobe levels, it gives a very flexible compromise between battery life and brightness. The LED’s are constant brightness units, so no dimming with battery discharge. I’ve used it for walking, reading, and computing (on my solar charged laptop) in the dark. My batteries are rechargeable NiMH AA’s, and with over 100 hours of light per charge, it will be a long time before I need another set. I’ve decided to bundle the headlamp, 4 NiMH AA’s, and the solar charger, and make it available to our readers for a few dollars more than it cost me for the individual components, as a service to you. The total comes to $99 including S&H in the USA. The little money we make on this will be used to keep projects and info coming your way.