SOLAR ROOFTOP · GRID-TIED

Cut your home electricity bill 30-50% with grid-tied Solar Rooftop

Homes, apartments, and small resorts cut their daytime electricity bill 30-50% with a right-sized grid-tied rooftop system — installed by Microgrid Technology (a LEONICS company) and tracked via the Solar Insight Tool, with an optional battery for outage backup.

30-50%
Daytime bill cut
5-7 yr
Payback
25 yr
Panel warranty
3-30 kWp
Typical size

Design figures for a system sized to this use case. What a given site actually gets depends on its load shape, the PV and battery sizing and its tariff — the worked examples below show the inputs.

The Challenge

Home electricity bills keep rising. Owners want lower bills with a clear payback — but worry about roof safety, the right size, and whether solar really pays off.

  • Rising home tariff — Residential tariffs keep climbing — especially in the daytime when aircon and appliances run together.
  • Paying peak rate at peak sun — The sunniest midday hours are exactly when the home buys grid power at full rate — power the roof could generate itself.
  • Wrong size wastes money — Oversizing wastes budget, undersizing under-delivers — most homes never measure real load before installing.
  • Roof and safety worries — Owners worry about roof load, waterproofing, and inverter safety.
  • Unclear payback — Without monitoring, savings are invisible and the real payback stays uncertain.
Grid-tied home rooftop — one conversion from roof to socket

The array feeds one grid-tied inverter; the house consumes first and only the surplus passes the meter. A battery can be added on the DC side later.

Grid-tied home solar rooftop architectureRoof modules send direct current to one grid-tied inverter, which converts once to alternating current used in the house first. Surplus flows out through the meter under the utility rules, and a battery can be added on the DC side later for backup or time-shifting.Solar Rooftop3–30 kWpBattery (optional)backup / time-shiftGrid-tied InverterMPPT · anti-islandingHouseholdself-consumption firstMetersurplus out to MEA / PEADCACAC1DC→ACOne conversion between the roof and the socketDCAC

Schematic — component ratings from the specifications on this page.

Interested in this solution?

LEONICS designs custom solutions with ROI/Payback estimates before installation.