Re: [RE-wrenches] Infinia Stirling linear alternators generators

2018-11-24 Thread Darryl Thayer
My involvement and knowledge goes way back so I have forgotten much.  I
think the unit was charged with Helium.  Helium has a slow leak it seems.
the units I was familiar with had no way to refill the helium charge.
 Also the rings or seas may be bad.  The piston had rings, seals, and a
long life was expected but if those seals went bad of course the power
would drop off.   I do not even remember the basic Sterling cycle,  I think
the piston did the valving such that the only moving part was the piston.
Sorry I couldn't be more helpful.   Thank you for the many helpful comments
you have made over the years.

On Sat, Nov 24, 2018 at 1:40 PM Starlight Solar Power Systems <
la...@starlightsolar.com> wrote:

> Thank you Hilton and Darryl. That explains what I’m seeing here in Yuma: A
> 90kW installation that went slowly, and is now entirely, off line.
>
> These are the linear alternator design. Any chance your friend will have
> technical documents?
>
> Larry
>
>
>
> On Nov 24, 2018, at 11:37 AM, Hilton Dier  wrote:
>
> A friend of mine worked for them. I believe they went bankrupt and/or got
> bought out. Seemed like the usual high tech startup management
> cluster_. Tech guys trying to do finance and finance guys trying to do
> tech.
>
> They had a good idea in that the 3kW engine didn’t require the complicated
> heat exchanger of larger machines. It had a linear alternator design, which
> simplified things as well. They also developed a cheaper mirror.
>
> Their problem was that the price of PV dropped so much that they couldn’t
> compete in turnkey $/kWh. There are a few orphaned arrays out there with
> nobody to do O&M.
>
> Unsolicited opinion: solar Stirling is a non-starter in a world of cheap
> PV. Stirling does have a place in small scale cogeneration.
>
> Hilton Dier III
> Renewable Energy Design
> Missisquoi River Hydro LLC
>
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Re: [RE-wrenches] Infinia Stirling linear alternators generators

2018-11-24 Thread Starlight Solar Power Systems
Thank you Hilton and Darryl. That explains what I’m seeing here in Yuma: A 90kW 
installation that went slowly, and is now entirely, off line. 

These are the linear alternator design. Any chance your friend will have 
technical documents?

Larry



On Nov 24, 2018, at 11:37 AM, Hilton Dier  wrote:

A friend of mine worked for them. I believe they went bankrupt and/or got 
bought out. Seemed like the usual high tech startup management cluster_. 
Tech guys trying to do finance and finance guys trying to do tech. 

They had a good idea in that the 3kW engine didn’t require the complicated heat 
exchanger of larger machines. It had a linear alternator design, which 
simplified things as well. They also developed a cheaper mirror. 

Their problem was that the price of PV dropped so much that they couldn’t 
compete in turnkey $/kWh. There are a few orphaned arrays out there with nobody 
to do O&M.

Unsolicited opinion: solar Stirling is a non-starter in a world of cheap PV. 
Stirling does have a place in small scale cogeneration.

Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC

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[RE-wrenches] Infinia Stirling linear alternators generators

2018-11-24 Thread Hilton Dier
A friend of mine worked for them. I believe they went bankrupt and/or got 
bought out. Seemed like the usual high tech startup management cluster_. 
Tech guys trying to do finance and finance guys trying to do tech. 

They had a good idea in that the 3kW engine didn’t require the complicated heat 
exchanger of larger machines. It had a linear alternator design, which 
simplified things as well. They also developed a cheaper mirror. 

Their problem was that the price of PV dropped so much that they couldn’t 
compete in turnkey $/kWh. There are a few orphaned arrays out there with nobody 
to do O&M.

Unsolicited opinion: solar Stirling is a non-starter in a world of cheap PV. 
Stirling does have a place in small scale cogeneration.

Hilton Dier III
Renewable Energy Design
Missisquoi River Hydro LLC
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