07 Aug '11, 2am

How Many Solar Panels Do You Need in Your Solar Array? - AltE

How Many Solar Panels Do You Need in Your Solar Array? - AltE

Insolation is a funny word for the number of hours in a day that a solar panel will produce its rated voltage. While all the day's sunshine counts toward this total, not just the brightest hours, not every daytime hour counts equally. When the sun is low in the sky, a solar panel facing it doesn't produce as much energy as it would at noon. Another way of putting it would be to say that if you crammed all the day's sunlight--weak and strong--into equivalent hours of "peak" sunlight, you'd have the "sun hours", or insolation, number. In your area, while the sun may be up for 10 hours during a February day, not all that light is strong enough to be counted at full value, so the insolation value in your area may be closer to 2 sun hours. In our calculations, we use average insolation values taken from years of data collection. Insolation varies by location as well as by month...

Full article: http://www.altestore.com/howto/Solar-Electric-Power/Getti...

Tweets

BioSolar, Making Solar Panels Cheaper, More Environmentally Friendly, & More Durable

BioSolar, Making Solar Panels Cheaper, More Env...

cleantechnica.com 06 Aug '11, 11pm

The panels use a “bio-backsheet” made of non-petroleum-based, non-toxic, recyclable castor beans instead of commonly used ...

Yosemite Installs $4.5m Solar Array

treehugger.com 04 Aug '11, 12pm

KCRA TV reports on the unveiling of the solar power array at Yosemite National Park last week (embedding is sadly disabled...

The 5 biggest solar myths - true or false

solarfeeds.com 07 Aug '11, 5am

Solar energy is on the cusp of becoming a mainstream form of energy. As moreinformation about alternative energy flies aro...

Coming Soon to Home Depot: Grape Solar: Grape Solar isn't the largest solar panel maker in the world, but it d...

Coming Soon to Home Depot: Grape Solar: Grape S...

greentechmedia.com 05 Aug '11, 11pm

Grape Solar isn't the largest solar panel maker in the world, but it does seem to understand retailers. The company--which...

SOLAR ELECTRICITY HANDBOOK: by Michael Boxwell ...

motherearthnews.com 06 Aug '11, 10pm

The Solar Electricity Handbook is a simple, practical guide to using electric solar panels and designing and installing ph...

Rattlesnakes and Solar Panels - As the weather heats up here in the desert, we are all reminded of our native deser...

Rattlesnakes and Solar Panels - As the weather ...

solarfeeds.com 31 Jul '11, 4pm

As the weather heats up here in the desert, we are all reminded of our native desert friends that have been around here lo...

Can Solar Thermal (CSP) Compete With PV Panels ...

greentechmedia.com 05 Aug '11, 3pm

The big problem here is the lack of transparent pricing. For a PV system, it’s easy to get prices for panels, inverters, c...

L'Oréal Plans Second N.J. Solar Array · Environ...

environmentalleader.com 04 Aug '11, 2pm

L’Oréal USA has announced that its Franklin, N.J. manufacturing facility is partnering with GeoPeak Energy in a power purc...

The 5 Biggest Solar Myths

solarfeeds.com 05 Aug '11, 2pm

Solar energy is on the cusp of becoming a mainstream form of energy. As more information about alternative energy flies ar...

"Secret Millionaires" Launch US$45m Fund for Fr...

treehugger.com 05 Aug '11, 1pm

Want solar panels but don't want to pay for them? Feed-in tariffs have already enabled free solar for schools programs in ...

Commercial Solar Hot Water Arrives in the Midwest

renewableenergyworld.com 05 Aug '11, 7pm

In this unobtrusive mid-country, which is frozen stiff for at least six months of the year, a new model and implementation...

Commercial Solar Hot Water Arrives in the Midwest

renewableenergyworld.com 05 Aug '11, 6pm

In this unobtrusive mid-country, which is frozen stiff for at least six months of the year, a new model and implementation...

Psst! Solar Fred Secret: The Solar Marketing Guru Ain't Me… It's You - RenewableEnergyWorld.com (blog)

Psst! Solar Fred Secret: The Solar Marketing Gu...

renewableenergyworld.com 04 Aug '11, 12pm

At times I feel like I'm seen as some kind of solar marketing guru. But let me assure you that I'm not. In fact, if any so...

Green Building Q&A: Solar thermal system and co...

greenbuildingadvisor.com 05 Aug '11, 4pm

I'm renovating a house in the Seattle area. Part of the renovation includes changing the roof lines for good solar exposur...

Yosemite Installs Largest National Park Solar A...

ecogeek.org 08 Aug '11, 7pm

This is something I'd love to see more of. While no one wants to see our national parks overrun with solar arrays, it is v...