market value of an electronics design

Hello Jamie,

You have missed out some key parts of the spec.

How many will be built What regulatory issues apply In what countries will it be manufactured/sold

A 'ready for production' design for this is a big job >> 1 man year.

As a one off not so bad but much cheaper to buy a ready made system.

Michael Kellett

Jamie, I have no idea of the cost.

But why do you have both a wind turbine and solar panels? What do you do if the winds blowing and the sun is shining? If I was going to buy such a system I would either dump the solar panels and buy a bigger turbine/ tower or dump the turbine and buy more solar panels. George

George Herold wrote in news:1fd1a809-bae9-40c5-8f45- snipped-for-privacy@k7g2000hsd.googlegroups.com:

Why? With both in place, you can sell excess power back to the grid, yet be covered in the event of clouds or low eindspeeds...I've also been considering a dual-mode system, at least in the next house (can't have eitehr solar panels or wind turbine here, the HOA forbids them). Expect that I'm thinking of an integrated roof ssytem, as opposed to a roof with solar panels attached.

Heck, I'd like to throw in a solar water-heater, passive but controllable heating (thermal panels and an attached "greenhouse" area that could also be used to grow fresh vegetables in Winter), a water-collecting roof and cistern, and passive cooling (if I end up in a dry climate) which utilizes passively opening/closing thermally-controlled vents in combination with the use of ground-cooled air drawn in when the vents open. I already have a lot of these things diagrammed out.

It seems to me that the more energy-independent one can be, the better off one is, so I'm just wondering why you advise against a dual system.

Thanks,

- Kris

Probably not worth anything. Payback period is far higher than the equipment lifetime.

All of these functions are available as individual components. Price them out (like you were building a solar/wind/grid tie system) by purchasing each component and lashing it al together.

Then, figure a reasonable break even volume for sales of the combined unit (probably hundreds or a few thousand per year for a year or two). Then figure the engineering and design cost as some percentage of this sum, typical of the technology being used (25%?).

Wow, who's on a $150K salary?

Huh? Why do you need an FPGA for a switch mode controller? Use your ARM micro below for any smarts.

You do realise commercial stuff like this already exists? So the "intellectual property" of such a device may not be worth much to anyone.

What is your real intention with this project?

Dave.

Technically this may be true, yet there are people who will buy this stuff for various reasons (flat-out ignorance, or they'll actually pay extra for "green" and to "not produce CO2", though they likely won't account for the CO2 produced in manufacturing). There may also be tax incentives which could make it somewhat less wasteful of their money (at the expense of wasting other taxpayers' money).

will buy

It's true some people will buy anything given the right sales pitch. The payback for home generation systems is so bad there should be a law against anyone selling it. Its very unlikely to even recoup the carbon used in its manafacture, transportation and disposal.