PV assisted heat pump - Page 2

Acuario · 07-27-14, 12:52 AM

We have 2280W of panels, MPPT charge controller, 960Ah batteries and a 4Kw inverter.

In the summer the batteries get charged pretty quickly so around 10am we turn on the AC (an old Pamasonic R22 only cooling unit that takes around 850W) and leave it on until around 7pm, this leaves us with fully charged batteries and a nice cool house.

Xringer · 07-27-14, 09:38 AM

It's going to rain next weekend, so try to get a good charge near the end of the week..

10 Day Weather Forecast for Tortosa - weather.com

~~~

Over here in the USA, our weather satellites are being neglected,

so they are feeding us old pictures from last Tuesday evening...

Well, everybody needs a vacation during the summer..

I have to rely on primitive radar maps to know if it's going to be sunny or not.
NWS radar image loop of Base Reflectivity from Boston, MA
Oh no! Storm coming!

Acuario · 07-27-14, 10:20 AM

I won't hold my breath!

The forecasts change quickly here and reliability is pretty low as we are so close to a mountain and are affected by the mediterranean.

Best way - look out the window. It sometimes goes so dark you expect a massive downpour but get 2 spots.

Xringer · 07-27-14, 02:50 PM

The weather in the Boston area can change pretty fast too..
This is my favorite site for short range forecasting.
WOBURN WEATHER CENTER - Radar

I can take one look at this radar display and tell when it will hit and how long it will last.
We just got 0.5" of rain and now it's just over-cast and humid..

07-27-14, 09:38 AM	#12
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	It's going to rain next weekend, so try to get a good charge near the end of the week.. 10 Day Weather Forecast for Tortosa - weather.com ~~~ Over here in the USA, our weather satellites are being neglected, so they are feeding us old pictures from last Tuesday evening... Well, everybody needs a vacation during the summer.. I have to rely on primitive radar maps to know if it's going to be sunny or not. NWS radar image loop of Base Reflectivity from Boston, MA Oh no! Storm coming! __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

07-27-14, 02:50 PM	#14
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	The weather in the Boston area can change pretty fast too.. This is my favorite site for short range forecasting. WOBURN WEATHER CENTER - Radar I can take one look at this radar display and tell when it will hit and how long it will last. We just got 0.5" of rain and now it's just over-cast and humid.. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..

07-27-14, 12:52 AM	#11
Acuario Apprentice EcoRenovator Join Date: May 2011 Location: Tortosa, Spain Posts: 221 Thanks: 2 Thanked 81 Times in 46 Posts	We have 2280W of panels, MPPT charge controller, 960Ah batteries and a 4Kw inverter. In the summer the batteries get charged pretty quickly so around 10am we turn on the AC (an old Pamasonic R22 only cooling unit that takes around 850W) and leave it on until around 7pm, this leaves us with fully charged batteries and a nice cool house.

07-27-14, 10:20 AM	#13
Acuario Apprentice EcoRenovator Join Date: May 2011 Location: Tortosa, Spain Posts: 221 Thanks: 2 Thanked 81 Times in 46 Posts	I won't hold my breath! The forecasts change quickly here and reliability is pretty low as we are so close to a mountain and are affected by the mediterranean. Best way - look out the window. It sometimes goes so dark you expect a massive downpour but get 2 spots.