You have power source, the load will determine how much power it wants to draw from power source, for example the 120VAC 15A AC outlet in your house, it can supply up to 1800W to the load if needed, so if you only plug in 100W lamp into the socket, are you then wasting 1700W of power, of course not, with light loads then the buck converter in the SCC does not have to work very hard at all. You can increase the battery banks in store more power in case you do not have enough sun light to keep the batteries charge up. You can also use the excess power to heat up water system.
Why do you have too do something with Wind and Hydro?
extra solar...hehe... people always have very different setups and it certainly shapes they view point.
I used to work in hydro for the electric utility and you definitely have to have some way to divert the water when the unit trips off-line from the grid. The grid keeps the unit at it's synchronous speed (60 hz) no matter the load but once it's off-line the speed increases almost instantaneously up to 3 times it's normal speed. It's scary when you're standing nearby. A Pelton wheel has a diverter that pops up and diverts the stream until the flow can be shut off further up the pipe. A Francis turbine has wicket gates that close and allow the water to be bypassed until it can be shut off.
Does anyone know of a company that can do the switching for the excess energy to the water heater or HVAC system? Maybe I should invent something to manager excess energy production. It is probably too expensive to justify cost versus convenience .
Not quite sure what you want, but you canlook at thermocouples for exhaust ports. Short story is after I looked at these, they’re simply to expensive and produce so little power, you can never justify the cost unless you luck up on someone getting rid of one that has no idea what it is.
Thanks for the reply. If I come up with anything that is automatic I will post it here.
That is what a lot of people think. Fact is you have to have excess solar in order to recover from bad days. I can guarantee that you have no idea what your solar system is doing all day. I have a small system and at any time, 2/3 of my panels are in shade and I don't remember ever seeing more than 600W total being produced by the array at any one time.
Batteries are now the cheapest way to store energy. The 280ah cells are almost 1kwh of energy storage each and are $100+shipping. A normal hot water tank can store like 6 kwh of energy if filled with cold water and heated all the way up which much of the time isn't realistic because it is already heated. So adding a second tank makes batteries cheaper.
What's a normal tank? And what temperature differential?
In Australia we have several solar PV diverters for hot water systems:
www.solarquotes.com.au
