30 Aug '14, 11am

Extrinsic Motivation: Off-grid Solar System Monitoring Solution

Extrinsic Motivation: Off-grid Solar System Monitoring Solution

nice job! the graphs clearly shows what are the downsides of an off-grid pv islands. of course it depends on the local regulation whether one is allowed to feed back juice to the grid. but if you can have an on-grid setup, your spring-summer-fall overproduction can cover the missing energy during winter. the provider does billing on yearly basis, so nothing is lost. besides pv islands’ batteries tend to die sooner or later, say in 3-4 years. and they are not that cheap to throw them away, indeed, as they are hazardous waste. i’m lucky enough to have an on grid system, but the electrical provider will not allow me to connect the otherwise isolated S0 outputs of the counter to measure the power i fed back. so i also needed a solution to monitor how things are going. there were some ready to use solutions available by the inverter’s manufacturer, needles to say for big $$. th...

Full article: http://hackaday.com/2014/08/30/extrinsic-motivation-off-g...

Tweets

Extrinsic Motivation: Daisy Kite Airborne Wind Turbine

Extrinsic Motivation: Daisy Kite Airborne Wind ...

hackaday.com 29 Aug '14, 11am

Ram air kites spin a parachute that in turn transfers torque that can be captured on the ground. In a true hacker spirit w...

Living off-grid never looked so good:

inhabitat.com 30 Aug '14, 6pm

I covet many of these tiny one-off homes, but at the same time, it’s impractical for me to think I would ever live in one ...

Writer shares his view on what features a good ...

cpf.gov.sg 31 Aug '14, 6am

For life: Life annuities are a necessary and prudent retirement product for meeting one's basic retirement and medical exp...

Not bad, but a better solution from DoorPal is coming soon

Not bad, but a better solution from DoorPal is ...

teslamotors.com 30 Aug '14, 10am

The Model S is pretty wide -- we all know that -- and I end up having to park close enough to our garage wall, which is co...

Bitcoin Is the Solution to the Military Industr...

original.antiwar.com 30 Aug '14, 4am

The past 100 years has seen the advent and spread of the disease with the highest death count of all time: the military in...

The Grid is Coming? The Grid is Going!

The Grid is Coming? The Grid is Going!

renewableenergyworld.com 09 Sep '14, 2pm

Solar for rural electrification is often criticized as a “light only” solution for battery charging, an occasional fan or ...

Foxconn adopts cloud computing-based security m...

digitimes.com 27 Aug '14, 8am

Foxconn adopts cloud computing-based security monitoring system Ninelu Tu, Taipei; Joseph Tsai, DIGITIMES [Wednesday 27 Au...

Extrinsic Motivation: P = NP If You Have A Time Machine

Extrinsic Motivation: P = NP If You Have A Time...

hackaday.com 02 Sep '14, 8am

Assuming the events portrayed in BTTF could be real in some alternate history or universe, consider the properties of a De...

Green roof system takes the biscuit - Green Bui...

greenbuildingpress.co.uk 30 Aug '14, 9pm

When faced with the reality of the broader environmental impact of the plastic trays, felt bases, and granular linings tha...

Would You Rather Own or Lease Your Rooftop Solar?

renewableenergyworld.com 30 Aug '14, 11pm

I am leasing a 10kw PV system from Solar City, I have had the system installed on my roof of my home in Southern Maryland ...

Would Solar Roadways Work? A Government Engineer Discusses the Controversial Technology

Would Solar Roadways Work? A Government Enginee...

greentechmedia.com 29 Aug '14, 5pm

Ever since Scott and Julie Brusaw went public with their idea for building solar-powered LED roadways, they’ve faced a con...