[RE-wrenches] Question on Back up generators

Hey All - I just got off of a phone call with my Onan generator supplier. Last conversation with Kohler was the same story basically. I was informed that their smallest water cooled generator, the RS22 (22 KW) is now no longer rated for off grid. They actually called me to confirm that

Re: [RE-wrenches] Question on Back up generators

We don't install anything smaller then a 13 k its air cooled but works well, as far as the numbers you have, Mine are somewhat different I use max potential load and max potential charge as when the batteries are low the genny must not only supply the home but also charge the bank back up at a

[RE-wrenches] Freeze protection Seasonal well

Hello wrenches, Ive got a potential client that has purchased a Shurflo 9302 submersible pump that he wants to use at a seasonal cabin. Does this type of pump reliably drain back when it is not energized? If not, do you have any simple ways to keep the piping from freezing near the top of the

Re: [RE-wrenches] Freeze protection Seasonal well

drill a tiny hole in the delivery line at the top of the casing, so when the water is not pumping it will empty into the well... yes, some will leak when the pump is running but the only other non-automatic option is a seasonal drain valve. todd On Wednesday, April 8, 2015 7:47pm, Mac

Re: [RE-wrenches] How can I calculate ROI when the kWh rate varies through the day?

Hi Mick, There are many tools that would do this. As far as free tools, NREL has a program call the System Advisor Model (SAM) https://sam.nrel.gov/ that you can download for free. There is a learning curve with it for sure, but its powerful. If you are comfortable with spreadsheets, you can

[RE-wrenches] Supply Side Interconnection - Parallel Conductors

Wrenches, We are developing the design for an upcoming commercial project with the following service equipment: - MDP: 600A, main-lug, 6 main disconnect breakers, parallel 350kcmil service conductors feeding each main lug Would anything prevent a supply side interconnection in this scenario? (I

Re: [RE-wrenches] How can I calculate ROI when the kWh rate varies through the day?

SAM is what you're looking for: https://sam.nrel.gov/ I didn't have much luck last time I tried to import TOU utility data, but you can enter your parameters manually if the auto-import doesn't work for you. Dave On 2015/4/8 16:15, Mick Abraham wrote: Hello, Mechanix~ A client requested a

[RE-wrenches] XW2048 for sale

Friends: I am selling a Xantrex XW2048 on eBay. If you are interested, the item number is 261843216511. If you have any questions, reply off list, of course. William Gradient Cap_mini Lic 773985 millersolar.com http://www.millersolar.com/ 805-438-5600

[RE-wrenches] How can I calculate ROI when the kWh rate varies through the day?

Hello, Mechanix~ A client requested a pure grid tie PV quote and of course I wish to help him project ROI return on investment. PV Watts only allows a single value to be keyed for the cents per kilowatt-hour, but my customer is on a TOU time of use billing program, so from 1 P.M. to 5 P.M. the