timselectric
If I can do it, you can do it.
- Joined
- Feb 5, 2022
- Messages
- 18,962
High quality with high price.
Best solar hybrid off grid inverter
- Thread starter Rho
- Start date
Maybe the Samlex EVO is what you are looking for. My system uses the Samlex EVO-2224-Inverter-Charger.
When the solar battery voltage gets low (to my programmed voltage) the Samlex EVO transfers to power my loads from the grid. Once the solar battery is charged up (to my programmed voltage) by the solar panels the Samlex EVO transfers to power my loads from the Inverter using my solar battery.
While using grid power to supply my loads (while solar panels are charging battery) I have the Samlex EVO-2224-Inverter-Charger programmed to just supply 1amp to charge the solar battery. That way the solar panels are used to charge the solar battery and the Samlex EVO-2224-Inverter-Charger only supplies a small trickle charge to the solar battery. I find the trickle charge useful because the solar system uses a small amount of power (inverter in idle, solar controllers etc.) and this keeps the battery voltage from going to low during prolonged periods of cloudy days.
Check out the link and download the manual for the Samlex EVO-RC-PLUS Remote Control. It is needed to program the Samlex EVO Inverter-Charger. Read over and study the manual carefully and you will see how to program it. It takes some time to study because it has a number of features. I have a lot of sticky notes to bookmark pages that I need because it is a very extensive and detailed manual.
Samlex EVO-RC-PLUS Remote Control | DonRowe.com
The Samlex EVO-RC-PLUS Remote Switch provides convenient remote power control, operational status monitoring and data logging for the EVO inverter/charger series.
www.donrowe.com
Select a Samlex EVO Inverter-Charger model that works for the voltage and power needs of your system. Samlex EVO are available in 12, 24, 48VDC and the 48VDC model offers 120/240 split phase. Download the manual and read it over. It is the most detailed & extensive manual I have found for an Inverter charger. I have learned a number of things from just reading the manual.
If the Samlex EVO-Inverter-Charger works for you donrowe.com has good prices to purchase the unit. I have purchased a couple of inverters from them and have had no problems. They are also known for their support.
A little more about the Samlex EVO-2224-Inverter-Charger with built in transfer switch that is listed:
The frequency and phase of the internal backup Inverter Section are always kept synchronized with the AC input source. This facilitates “extremely fast” transfer time of up to 16 ms. Also, transfer from the Inverter Section to the AC input source and vice versa takes place at zero crossing of the voltage waveform – this ensures (i) negligible arcing / erosion of Transfer Relay contacts and (ii) negligible Electromagnetic Interference (EMI) associated with arcing.
This synchronized feature also helps the wear & tear on loads when the auto transfer switches from one AC source like the Grid/Generator to the Inverter/Charger and vice versa.
Hope this helps...
Last edited:
Thank you. Your information was very insightful. I took new approach. Removed grid service. Seems to function much better. So either on grid feeding grid or totally off grid is the true operations. This pulling from grid as needed results in relay problems. Period.
Thank you again
Thank you I will investigate very soon.Maybe the Samlex EVO is what you are looking for. My system uses the Samlex EVO-2224-Inverter-Charger.
When the solar battery voltage gets low (to my programmed voltage) the Samlex EVO transfers to power my loads from the grid. Once the solar battery is charged up (to my programmed voltage) by the solar panels the Samlex EVO transfers to power my loads from the Inverter using my solar battery.
While using grid power to supply my loads (while solar panels are charging battery) I have the Samlex EVO-2224-Inverter-Charger programmed to just supply 1amp to charge the solar battery. That way the solar panels are used to charge the solar battery and the Samlex EVO-2224-Inverter-Charger only supplies a small trickle charge to the solar battery. I find the trickle charge useful because the solar system uses a small amount of power (inverter in idle, solar controllers etc.) and this keeps the battery voltage from going to low during prolonged periods of cloudy days.
Check out the link and download the manual for the Samlex EVO-RC-PLUS Remote Control. It is needed to program the Samlex EVO Inverter-Charger. Read over and study the manual carefully and you will see how to program it. It takes some time to study because it has a number of features. I have a lot of sticky notes to bookmark pages that I need because it is a very extensive and detailed manual.
Samlex EVO-RC-PLUS Remote Control | DonRowe.com
The Samlex EVO-RC-PLUS Remote Switch provides convenient remote power control, operational status monitoring and data logging for the EVO inverter/charger series.www.donrowe.com
Select a Samlex EVO Inverter-Charger model that works for the voltage and power needs of your system. Samlex EVO are available in 12, 24, 48VDC and the 48VDC model offers 120/240 split phase. Download the manual and read it over. It is the most detailed & extensive manual I have found for an Inverter charger. I have learned a number of things from just reading the manual.
If the Samlex EVO-Inverter-Charger works for you donrowe.com has good prices to purchase the unit. I have purchased a couple of inverters from them and have had no problems. They are also known for their support.
A little more about the Samlex EVO-2224-Inverter-Charger with built in transfer switch that is listed:
The frequency and phase of the internal backup Inverter Section are always kept synchronized with the AC input source. This facilitates “extremely fast” transfer time of up to 16 ms. Also, transfer from the Inverter Section to the AC input source and vice versa takes place at zero crossing of the voltage waveform – this ensures (i) negligible arcing / erosion of Transfer Relay contacts and (ii) negligible Electromagnetic Interference (EMI) associated with arcing.
This synchronized feature also helps the wear & tear on loads when the auto transfer switches from one AC source like the Grid/Generator to the Inverter/Charger and vice versa.
Hope this helps...
JohnPoole
New Member
- Joined
- Jun 1, 2022
- Messages
- 18
The Samlex EVO-2224 2200W Pure Sine Inverter/Charger is listed for sale sells for $1,499.99 US, or $1,500 at donrowe.com, a family run business selling inverters since 2001 (about). The manufacturer's product page is here. There's a product manual, quick start guide, and Samlex Specifications (English & Spanish) available at that page.
Rednecktek
Solar Wizard
I'm currently trying to do some research myself on the best bang-for-the-buck 3Kw unit between the Growatt, the MPP, the EG4 and the PowMr. Budgets and cold environment are major factors.
pilotdrh
New Member
Works just like paralleling with gens on the grid. Control the phase angle for power (for gens control the fuel flow) and the output voltage for reactive power control. For both just a little goes a long way. I've never worked on a UPS system that parallel with the grid. I've done a few decades with gen import/export/standby system. Systems from 208V to 13,200 volt and 1 gen up to 14 personally. The biggest diesel gens I've done were 2.8 MW each. and turbines up to 8 MW. Generally in that world the limiting factor was short circuit current availability which limited the size/number of gens.
Yes,Signature Solar had me return inverter. Sent new one. All is good now.
