Search results

By "double conversion" I mean power is converted from from grid AC to DC for battery charging. Then converting a second time from battery DC to load AC. Each conversion costs money due to less than perfect efficiency. A UPS has a relay that provides 100% efficient grid-to-load when the grid...

Thanks for contributing. Is the Midnite Rosie inverter doing double conversion to make this work?

18KPV. This entire thread about our 18KPV and how it is having problems switching from grid to battery.

We had a very brief brownout today when the office UPS batteries "clicked" and the the overhead lights flickered as utility power wavered. This was very brief but enough for the office UPSes to switch to battery then switch back to utility almost instantly. The office computers never noticed as...

10 to 12 kW of 240VAC is what we need for the two servers. This is not a typo. We have a generator so the 18KPV only needs to last long enough for it to start. If we had APC UPS as you suggest then we wouldn't need the 18KPV! If the 18KPV is not suitable as a UPS for a server then it...

I need a high capacity UPS in the 10-12kW range to keep a rack of servers up while the backup generator starts. I recently purchased an EG4 18KPV hybrid inverter and four EG4 LL server rack batteries. This is grid connected with no solar and no grid back-feed. I am seeing a "glitch" on the...

Remember, original goal is to send all excess solar power to the car without sending battery or grid power to the car. The point is to use the car to capture more free sun energy than we have house battery capacity. All while the SolArk keeps us from exporting any power to the grid. Where are...

Glad it works. But you have net metering. We don't have the ability to send power to the grid so we are operating in zero-meter mode. So the Vue will NEVER see negative (export) power so it won't ramp up the charger. Hence my proposed plan--above--to have a second smart loads breaker panel and...

Simple would be no solar and no batteries. We have flat rate constant pricing. At $0.02 you don't need solar, just batteries.

Thanks for all the responses so far. It is good to hear the Emporia “excess solar” mode works on their charger together with their Vue energy monitor. Really smart strategy on their part to build a system this way. However, I don’t think it will work for our situation. As I understand it so...

AFTER the house batteries are fully charged I want to send EXCESS solar production to our Tesla. We are zero export grid tied so once batteries are full any excess solar power not used by the house is wasted. Sending the excess to the cars makes charging them truly “free”. I see some discussion...

I spent an hour Googling the idea of a BT / Ethernet bridge and didn't find anything. Certainly not a plug-and-play solution. Ethernet/WiFi comms is IP address based but, I understand correctly, BT is not. The bridge, if there is such a thing, might map BT to an IP address but you then have the...

To close out this thread in case anyone finds it in a search later... no luck finding a SOC monitor with Ethernet. I am going with the Victron solution with it's Ethernet port and web portal for this project. Still interested in Ethernet/WiFi connected options if anyone finds one. What...

You are doing cool stuff. Nice job on the YouTube video/channel. Thanks for the link. A little too DIY for what I had (incorrectly) assumed would be an easy Amazon purchase. Turns out Ethernet has gone out of fashion as BT has become dirt cheap. Feels like there is a hole in the marketplace for...

Interesting product. Thanks. Didn't price it but looks expensive. But more importantly, looks focused on their battery products so not seeing it being suited for our application. We are using 4x Ampere Time brand 100AHr 12v LiFePO4 batteries with arranged 24v. The model with built-in heaters as...

There are many SOC monitors, like Drok, but they all communicate via a visual screen or maybe a Bluetooth app. But how to get that data remotely via the Internet? I didn't know Drok had dry contact outputs. Thanks for mentioning that. Maybe its relay could be programmed to trigger on low SOC...

Thanks for the Cerbo endorsement. I do agree this is good gear. You say you sometimes remote access via Internet. You do know their VRM portal gives you pretty much what info you need without going to the site, right? If this site had more functions/devices the Cerbo could monitor then it would...

Looking for a legit battery monitor that uses a current shut to track SOC. But this is a remote site so BT phone apps are not going to help and aiming a web cam at a display is silly. We have Internet access and a wired network so something with an Ethernet port would be ideal. WiFi would be...