One major precaution one must always employ is to remember when to turn the grid tie inverter on and when to turn it off. Some people tend to be forgetful while some negligent. Either of the traits can be disastrous on a bad day. The inverter carries power of such a high watt that slightest fumble on your part can put your life at stake.
Power inverters of inferior quality may get overloaded easily. Besides, more often than not, it is the user who is at fault for using the inverter to draw a power in excess of its capacity. One should always weigh the rating of the grid tie inverter and also the power which a certain device draws in order to run effectively. A mismatch should be avoided at all costs so as to avert any untoward incident.