Grid-Tied System

Grid-tied, on-grid, utility-interactive, grid intertie and grid backfeeding are all terms used to describe the same concept – a solar system that is connected to the utility power grid.


Save Money

  • Independent from Utility Grid during day time
  • Can sell back excess electricity on to the utility grid through the Net Metering setup

Utility Grid is a backup

  • Utility Grid (MERALCO) supply is only used when solar PV system output is insufficient (e.g. rainy days) and during night time

No power during brownouts

  • Grid-tied system only works if Utility Grid supplies electricity

Off-Grid System

An off-grid system (off-the-grid, standalone) is the obvious alternative to one that is grid-tied. For homeowners that have access to the grid, off-grid solar systems are usually out of question.


Self sufficient anytime

  • Have power even during brownouts and night time

High cost

  • Require to purchase and maintain batteries
  • Need backup generators in consecutive days without the sun shining

Hybrid System

Hybrid solar systems combines the best from grid-tied and off-grid solar systems. These systems can either be described as off-grid solar with utility backup power, or grid-tied solar with extra battery storage.


Less expensive than Off-Grid Solar

  • Can downsize battery requirement; uses Utility Grid as backup instead of generator set

Can sell back electricity

  • Net Metering set up is applicable

High cost

  • Purchase and maintenance of batteries
  • Inverter is significantly more expensive; new technology and complex

Installation Process

PRODUCT Warranty

  • Goods are subject to warranty produced by the manufacturer
  • Usual terms for solar panels and inverters are 10 yrs. and 5 yrs. , respectively.

SERVICE Warranty

  • Warranty period on Services shall be three (3) months from the date of completed work covered by the agreed Scope of Work.

Other Services

  • Installation support and all PV System components (Solar Panels, Inverters, Mounting rails, Cables, Connectors, Groundings)  to be supplied as part of the services of SOLARCHE.

Which System Works Best For You?

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