efficientPV

If the temperature differential is too close, you may be getting hot starts which further delay cooling. Your contacts may be crapping...

Everyone should be aware that when the contact opens, the switch sees the open circuit voltage of the panels. That is why the MW&S...

12V heating elements will NEVER match a 12V solar panel no matter how many panels are put in parallel. As said before the heating...

15sq045 is limited to internal bypass use because of the low voltage 70HFR120 on amazon are good blocking diodes, 70A @1200V with .7V...

Thats a nice manual. I don't usually use any. I used to buy broken inverters cheap, now everyone thinks they can repair them and the...

You can use a buck converter module to reduce it to 12V. Many newer 12V inverters have auto reset so they will work seamlessly. Older...

It amazes me in this digital age how we still cling on to ancient power technology of sine waves.

I'd like to know how you calculate watts thru the day. Are you using theoretical power that can be obtained? For example, going to 2X...

That sounds like a good idea, but it isn't. Switching in an element usually drops the power in half. It isn't seasonal, but many times...

"the 180w of difference for those times isn't going to matter" That is what most think. That 180W of extra power is what heats almost...

I recently obtained a nice 12V ball valve and could imagine using this as a bypass when the water is hot. This ball valve only takes...

You don't state what panels you have. Normally the power supply wouldn't care. Three 12V panels in series could exceed the output...

It is microprocessor controlled that looks at battery voltage constantly with preventions from hot starts. Should it run too long it...

I took a totally different approach as I consider a freezer a battery. I have MSW inverter, an old car battery for starting surge only...

I used ultrasonic sound to grow plants back in 1963.

I used to grow plants with ultrasonics, made them grow like crazy. Hard to believe ultrasonics would stunt algae.

Vinyl siding, YUCH. Cement board is the only way to go with siding.

Why spend $150 on an inverter when a $15 one and buck converter will do the job.

Blown fuse is in the current shunt section and would not affect voltage measurment. Did you use the right connections on the meter...

Because electricity is just magic to 99% of the people here and they just regurgitate what someone else has said. For things that go...