The type of in-wall wiring and cables you choose for your home will largely depend on what kind of signal you need to carry, where you’re going to route the wire, and how far the signal will have to travel between your various peripherals. Whatever type of wiring you choose to go with, you want to be sure you get one that’s rated for in-wall use by the Underwriters Laboratory (UL). This is usually going to be indicated with a CL2 or CL3 rating when it comes to speaker wire and audio/video cables. A good number of Ethernet cables are rated for in-wall use as well, usually indicated with a CM, CMR, or CMP rating. When choosing the right rating for each specific type of wiring, the UL looks at a range of different factors, including the heat being generated from current flowing through the wire, how quickly the cable will catch and spread fire when exposed to flame, and the wire’s vulnerability to damage from external stresses.

It is also important to look for a cable that’s rated for your specific needs. For instance, you are going to want cable that is rated as CL2P or CL3P if you are planning to run it in your heating ducts, or if you are looking to run your cable underground to connect to your outdoor speakers, you will want to make sure your cable is rated for direct burial. It should also be noted that when you are making the decision of what custom wiring you will need for your home, you need to be aware of your local fire codes and make your selections accordingly.

When you are looking for the right type of speaker wire for your home, there are two things you need to factor into your decision: the gauge and number of conductors. The gauge of wiring you choose should depend on how far the wire is going to have to travel from the receiver to the speaker. Significant power loss can occur over long runs of wiring, reducing your system’s performance. This might not be a significant issue in a single-room setup, but it is something to keep in mind if you are looking at a multi-room system. In terms of conductors, speaker cable comes with two or four. Two should be all you need for wiring a single speaker, but if you are looking at doing a multi-room setup, or a system with volume controls, you will mostly likely want four.

No home wiring setup would be complete without a solid Ethernet setup, but knowing which type of wiring to use can be a little confusing. When you are looking to create a wired computer network in your home, or carrying audio/video and control signals all across the home, CAT-5 cables have been the standard for a long time, but a better option these days might be to look at CAT-5e or CAT-6 cables. These newer cables are able to pass more data along the wire at a much faster rate than the older wires. The CAT-5e and CAT-6 wiring options are also backwards compatible with devices that were designed to work with the older CAT-5 wiring, meaning you won’t have to buy all new equipment. Ethernet cabling actually stands up to interference better than almost all audio/visual cables, which is a large reason it has become so popular in recent years for whole-house audio/video systems. It can also be a more cost-effective option to run long lengths of Ethernet cabling than it can be to run the same length in audio/video cable.

These systems are still expensive compared to the conventional electric generating plants such as hydro. And since they only generate power during the day, batteries or other storage systems are required to ensure power availability during the night or times when the conversion is low. This means spending more on batteries, which are currently the most popular storage devices.

Another limitation is the intermittent nature of light, making the energy unsuitable for some applications.

Space limitations may influence the maximum power that a consumer can generate. The cheaper panels have a lower conversion rate and require larger areas. However, customers may overcome this by using the more expensive but higher efficiency panels which require less space.

Improved photovoltaic technology, mass production and lower installation costs have seen the cost of photovoltaic systems and components such as batteries fall rapidly. Incentives such as financing, rebates, and wide acceptance by homeowners have influenced the use of the photovoltaic cells.

As we've discussed before on this blog, spring brings with it a few weeks of abnormally wet weather here in the Mid-Atlantic, which is evidenced by the current storms that are barreling down on the region. Basements throughout Maryland, Virginia and Washington, D.C. are regularly flooded as a result, potentially costing homeowners thousands of dollars in damage if they didn't prepare accordingly.

While most residents know the importance of having a sump pump to keep the water out, there are other precautions that residents need to take to avoid catastrophe when their basements begin flooding.

Many older homes often feature electrical systems that are outdated and not up to current safety codes. One particularly sensitive kind of wiring is the "knob and tube" design, which leaves a complete grid of crisscrossing wires exposed along the ceiling of the basement. Its been decades since this kind of layout was considered acceptable in residential structures, and homes that have them are more than likely dealing with wires that have seen much better days.

During extreme weather conditions, any number of events could result in a deficiency in the system that may either spark a fire or down a wire in homes that feature knob and tube layouts. If the wires in the basement either fall or are damaged in the event of a flood, they have the potential to expose electrical currents to a growing pool of water. This is an extremely dangerous and potentially fatal safety hazard for homeowners to contend with.