Hi Geoff from Australia, Curious, what is the brand and cost of your stand-alone and grid connect controller you are using for your gasifier/battery bank system? Thanks, Jay
On Thu, Nov 18, 2010 at 5:05 PM, Geoff Thomas IMAP <[email protected]> wrote: > Answering Doug and Greg, on the topic of getting your gasification produced > power on to the grid, I use an Inverter that is a combination of Stand-alone > and Grid connect, - this draws from a battery bank, and when the bank is > full, legally (yes, approved) exports the incoming power to the grid. - It > is a response to customers who want their Solar input to continue when the > Grid is down, and also those who want to use their own power when the Peak > grid power charges are occurring. > This sort of system is also a whole house UPS so delivers very high quality > power to all your appliances without spikes. > Yes, it is more expensive, the Inverters are more expensive than a straight > grid connect inverter, and depending on the size of the battery bank, the > batteries can cost a lot as well. > (Just to pre-empt a discussion on batteries, I use high quality 22 years > design life lead acid Tubulars, 16.4 years life if you cycle 20%/day, they > are not expensive and the manufacturer will take back any old batteries and > re-cycle them, - lead acid battery technology has come a long way the last > few decades). > The point of this system is you can use it for any input at all, your > electrical output from your gasifier only needs to be put into the battery > bank, - ideal for batch gasifiers, and other intermittent renewables such as > Wind or Solar, raining time only Hydro, (run of the river, er um gutter:-) > and the Inverter can also charge up the batteries from a petrol, diesel or > gasifier genset or even use the grid power at off peak times. > This is like putting an incredibly flexible gear-box between your power > usage and your generation system. > Obviously, for a gasifier it takes all the worry out of meeting specific > demand criteria, changing generator speeds and the like, all you need is a > maximum power tracking type of rectifier, several now widely available, and > you are ready to roll. > Hope that helps, > Geoff Thomas. > Australia. > > On 19/11/2010, at 6:00 AM, [email protected] wrote: > > From: "doug.williams" <[email protected]> >> To: "Pete&Sheri" <[email protected]>, "Discussion of biomass >> pyrolysis and gasification" <[email protected]> >> Subject: Re: [Gasification] Gasification facilitates Biochar >> Message-ID: <06cb7f62104e49e7bfe5ccc685585...@dougspc> >> Content-Type: text/plain; charset="iso-8859-1" >> >> Hi Pete, >> >> You ask: >> >> How much power are you feeding into the grid? >>> >> >> The Tecogen puts out 60 kwe on LPG, and from memory, I calculated we would >> get around 47 kWe on producer gas. As my job is to supervise the producer >> gas interfacing, (I'm still in NZ) next week, I can be more specific in my >> next report in December. >> >> If its more than 5 or >>> 10 KW, please tell me about your grid connecting controller: cost, >>> mfr, etc.. >>> >> >> All this stuff is built into the Tecogen CHP system, not clobbered up with >> off shelf componentry. These package plants are fully certified to meet >> Californian regulations, and came with a hefty price tag in the region of >> $80,000. I do know that there would have been some big charges from the >> power company to supply relay code settings if we had not had them fitted >> into the Tecogen. >> >> The economics of doing this power generation module are certainly outside >> of commercial realities, but my associates are looking for answers to >> questions, and prepared to pay for the experience. As the second objective >> of this particular project is to replace LPG as a heating source for glass >> houses, the gas has greater commercial value than for electrical generation, >> but we still have to meet all the emission regulations for it's combustion. >> >> Because the issues of grid connections can only be discussed in general >> terms, my opinion for what it is worth (nothing) , tells me that DIY gensets >> and grid relay connectors, will not be approved by most line companies, >> unless they can be certified appropriately, hardly economic for a few kWe. >> If that's all you can offer, then you are best suited to either use >> gasifiers for stand-by, or use all the power yourself on site. >> >> Doug Williams, >> Fluidyne Gasification. >> >> >> ------------------------------ >> >> Message: 4 >> Date: Thu, 18 Nov 2010 06:01:41 -0600 >> From: "Greg Manning" <[email protected]> >> To: "'Discussion of biomass pyrolysis and gasification'" >> <[email protected]> >> Subject: [Gasification] Electricity Generation: > was Gasification >> facilitates Biochar >> Message-ID: <1cd72801b42049fd906cd97565266...@a31new> >> Content-Type: text/plain; charset="US-ASCII" >> >> >> >> Hi Pete, Doug, and list. >> >> >> Electricity Generation: >> >> Here in Manitoba, where Electricity is the cheapest in North America (0.06 >> kwh) it IS still feasible, the key to this is using 2 engine/generators. >> Two >> you say.... >> >> Let me explain, the interconnect equipment is the cost, the generators are >> cheap in comparison, one way to get around the high price of synchronous >> generation (the type of generator that produces simply by spinning it's >> shaft), is to use an "induction generator" when connected to the grid, and >> THEN, if the power fails use the synchronous generator as a stand alone, >> until grid power resumes. >> >> Induction generators ONLY make electricity IF the GRID is working, once >> the >> grid goes down, the generator simply spins, and no output; However, they >> are >> really easy and cheap to interconnect because of the non-need for >> synchronizing. >> >> On the other hand, Synchronous generation required VERY costly interface >> equipment, BUT as a "stand-alone" they generate when no other electricity >> is >> present. >> >> kindest regards, >> >> Greg Manning, >> Canadian Gasifier Ltd. >> Building Hi-Performance Gasifiers, Since 2001 >> >> Brandon, Manitoba, Canada >> 1 (204) 726-1851 >> > > _______________________________________________ > The Gasification list has moved to > [email protected] - please update your email contacts to > reflect the change. > Please visit http://info.bioenergylists.org for more news on the list > move. > Thank you, > Gasification Administrator > _______________________________________________ The Gasification list has moved to [email protected] - please update your email contacts to reflect the change. 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