Re: Grid Tie Micro Inverter that plugs into house AC outlet...
I've never seen a legal, UL/CSA listed plug in the outlet inverter system. There is a reason that you wish to have the utility and the permit authority involved in grid tie PV. That is to ensure the safety of you, your house as well as the the utility.
PS if you are trying to save the dollars equivalent to ~ 150 watt, maybe $.01 per hour for may be 6 hours,, or $.06 per day I would surely bet that I could find 150 watts of energy savings that would save more than $.06 per day. Water heater blanket, heat traps on water heaters, turn off a light or two, change a few more bulbs to LED/CFL, turn down the heating t-stat 1 degree F, or turn up the A/C t-stat the same 1f, water saving shower heads, air dry you dishes, wash your laundry in warm or cold water, air dry your laundry,, and on and on and on.
Your 150 watts of PV might cost ~$500 installed with an inverter. What would it cost to do some if not all of the above? Nearly nothing.
Please note, being a moderator does not add any weight to my opinions 300 watts Siemens/BP panels,plus a Sun 90,, making ~400. ~30 amps into Rogue MPT-3024, 450 ah of Trojan T-105, Morningstar ts300 inverter, a Tri-Metric meter.a collection of antique generators, plus 2 Honda eu-1000i's (also a BS2512 IX controller) and assorted other stuff!