"Show me the money"?
Hard to decide how much to spend until you know what to expect?
Rough and Basic
I have a DVD player that takes 10W.
LCD TVs can take under 50W. My old 25" CRT TV takes 200W. My Ma-in-Law's (15"?) LCD TV runs from a 12V power supply rated at 50~60W Max, IIRC.
CFLs take, well, whatever the bulb says.
Laptops take a lot less power than desk tops. 200W vs 60W? Depends.
Shouldn't be a whole lot involved to get a couple hours use a day on those items, with a 400W inverter.
Keep in mind, a 100W solar panel is rated at max power.
Multiply the rated watts by 0.7 to get a better idea of what you have to work with.
And figure the solar insolation for the location at that time of the year.
With a 100W panel and 4 hours of insolation, expect to make an average of 280 watt-hours a day.
Multiply by 90% to take some losses into account.
So (100W x 0.7) x (4 hours) x (0.9) = 252WH per day.
With a 100W panel at a time and place getting 4 hours of insolation per day average...
A 13W CFL for 5 hours is 65WH.
A 60W LCD TV for 3 hours, 180WH.
A 10W DVD player for a 90 minute movie, 15WH.
Total is 260WH for that day.
Pretty close to breaking even.
Cost of a 100W system is not that great a % more than a 50W system.
Conservation is better (and cheaper) than generation.
A 13W CFL makes the same light as a 60W incandescent.
A 60W LCD TV has a nicer picture than a 200W CRT TV.
ie: 3 hours a day with CFL and LCD is 219WH. 3 hours a day with incandescent and CRT is 780WH.
Saved 561WH on this day, or about the output of TWO 100W panels.
And LCD TVs costs a lot less than 200W of solar panel,
let alone the cost of battery replacement, larger battery, larger inverter, larger controller.....
The fridge is a tough nut to crack until the system gets "a lot bigger".
Too much info?
G-
