PVs are compatible with your regular power grid.  The Backpack Electricity System Review The module to which the panels are connected puts out anywhere from 10 to 300 watts, and the modules are connected to an inverter. The inverter, in turn, changes the current from DC direct current to AC alternating current, which is the sort of power that is compatible with the regular power grid, and can be used to run normal household appliances. Without the power being converted to AC, you would have to exchange all of your electrical appliances with DC-compatible ones, which would be very expensive. If you decide to go off-grid entirely, you will still need to convert to AC.

Being as environmentally friendly as possible is something that most of us try to do on a daily basis. Whether it be by recycling or re-using our old shopping bags, looking after Mother Nature is important to us all. One of the added benefits of becoming more environmentally aware is that not only can it help preserve the planet but it can save you money on your monthly electricity bills as well.

Using a comparison website is a great way to save money. All you need to do is enter a few details about where you live and your current energy usage and you'll be presented with a variety of different tariffs to suit your specific needs. By switching tariffs the average family can save up to £200 a year. Another way to save money is to take your gas and electricity bill with one supplier, which should save you money on both bills.

Electricity monitors are another way to save money by keeping check on how much electricity you're using in real-time. These battery operated monitors cost around £30-£50 and can tell you not only how much electricity you're using, but what it's costing you and how much CO2 you're emitting. British Gas are offering a free monitor as an added incentive to anyone that signs up to their EnergySmart tariff, but even if you buy a monitor hopefully you'll end up earning your money back by keeping a watchful eye on how much electricity you're using and finding ways to cut down.
 

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