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04-04-2011, 02:43 PM   #46
DIY Homeowner

Join Date: Jul 2009
Location: Indiana
Posts: 169
Rewards Points: 150

I upgraded my service from 100A to 200A in 2009. Similar story to yours - it was an old, 100A, overstuffed panel. Whether or not your price is a good deal (or bad deal) depends on your area and other work involved, but I spent a similar amount and think the price seems reasonable.

I've been rewiring much of my home over the past few years, and I'm glad I jumped to 200A (which is what my Realtor recommended as well). Not because I needed 200A (I doubt I ever draw more than 100A), but because I've added at least half a dozen circuits since then to meet modern code requirements. So the extra space in the panel has been the biggest benefit. And the 200A is there if I need it.

RST

04-04-2011, 11:52 PM   #47
Member

Join Date: Jun 2010
Location: Southeastern Massachusetts
Posts: 114
Rewards Points: 91

My panel is overstuffed as well.

I calculated my max electrical load based on the 2002 NEC code:

1536sqft x 3VA = 4608VA
2 x 1500VA = 3000VA
1 x 1500VA = 1500VA
sum of above less T220.11 demand
sum of above = 9108VA
first 3000 at 100 % = 3000
next 117,000 at 35% = 2138
remainder at 25% = 0
sum less demand = 5138VA
disposal = 720VA
dish washer = 912VA
fridge = 540VA
microwave = 1000VA
attic fan = 420VA
TV = 675VA
washing machine = 1200VA
sum less 75% demand = 4100VA
Total dryer circuit(s) load = 5600VA
T220.19 Column A = 0kVA
T220.19 Column B = 0kVA
T220.19 Column C = 0kVA
Total calc.d range load = 0kVA (gas range)
Air Conditioner = 4296VA
25% of largest motor = 0.25VA
19134.25 Volt-Amps
Computed Amperage
19134.25 divided by 240 = 80Amps

____________________________________

So I can potentially be at 80A right now. In the future i want to re-do my basement, which will add to the load, esp since I'd probably add electric baseboard.

Does code state that you cannot load your panel to 100% of capacity?

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