If you live in an older home, there's a good chance your electrical system could be out-of-date. Because they use a lot more electric gadgets and appliances, today's homes require a lot of wattage and amperage than homes did in the past. If you're thinking about having your home's electrical system upgraded, there are a few things you should know. Know the Signs to Watch For First, know what to look for when it comes to signs that your electrical system needs an overhaul.