A grid tie solar power system allows homeowners to connect solar panels to the utility power grid. The solar panels generate electricity that can power the home, with any excess electricity fed back into the grid. A grid tie system includes solar panels, an inverter to convert DC to AC power, and connections to the utility meter and service panel. When the grid fails, the solar inverters instantly shut off for safety. Net metering policies allow homeowners to be billed only for their net electricity usage over a billing period.

1. GRID TIE SOLAR POWER SYSTEM
PRESENTED BY-
VIVEK KUMAR CHAUHAN

2. GRID CONNECTED SYSTEMS
 Grid Tie System is the simplest and most cost effective way
to connect PV modules to regular utility power.
 Grid-Connected systems can supply solar power to your
home and use utility power as a backup.
 As long as there is enough electricity flowing in from PV
system, no electricity will flow in from the utility company.
 If system is generating more power than you are using, the
excess will flow back into the grid, turning meter backwards.

3. GRID TIE SYSTEM COMPONENTS

4. Load Estimation
Site Survey
Marking/Racks
Installation
Panel
Installation
DC Cabling
Inverter
Mounting
AC Cabling
Meter and load
Service Panel
Connection
Plant Testing &
Operation
STEP-WISE WORK DESCRIPTION

5. WHY ROOFTOP ?
•25 year warranty•Well proven
technology
•Easy Installation
•Net Metering•Andhra
Pradesh
•Tamil Naidu
•Rajasthan
Policy and
Regulatory
Support
Financial
Viability
Increased
Assurance
on Power
Supply
Technical
Feasible

6. NET METERING
How it Works:
The customer is billed for the
net electricity purchased from
the utility over the entire billing
period - that is, the difference
between the electricity coming
from the power grid and the
electricity generated by the PV
system.

7. WHAT HAPPENS WHEN THE GRID FAILS?
The Solar Inverters instantly switch off when the grid fail, which is almost
always due to some fault condition, and it is extremely hazardous to continue to
keep feeding power in such conditions
This behaviour of grid-tied inverters is called anti-islanding protection
The way grid-tied inverters implement anti-islanding is by continuously
monitoring the grid and detecting one of the following conditions:
 A sudden change in system voltage magnitude.
 A sudden change in system frequency.
 A sudden change in the rate of change of system frequency.
 A sudden increase in the active output power (kW) well beyond the “normal”
level.
 A sudden increase in the reactive output power (kVAR) well beyond the
“normal” level.

8. ARUN
 An android app name “ARUN (Atal Solar Rooftop Solar
Navigator)”, which is a simple guide for solar rooftop system,
can be used to know it even more better.
 This app includes
 Calculator for calculating the cost of installation of rooftop
systems
 Provision for submitting the installation request to the ministry
of new and renewable energy.
 Provide list of all approved agencies of the ministry.

9. ADVANTAGES
Net Metering can offset a customers electricity usage costs.
Easier to install as they do not require a battery system.
Its estimated life span is 25years
Also it is environment friendly
DISADVANTAGES
The System is costly
If the grid goes out so as your home electricity even there is bright light.
Requires large amount of space

10. CONCLUSION
Grid-tied solar PV systems have become very popular all over the
world and are on the verge of taking off big time in India as well.
The SEBs need to do their part by coming up with good net
metering policies. In response, the consumers should go for solar
in a big way.

11. REFERENCES
• http://www.cenergymaxpower.com/introduction-grid-tied-solar-pv-systems/
• http://www.eqmagpro.com/an-easy-to-use-mobile-app-arunfor-solar-rooftop-
was-launched-by-secretary-mnre-on-24012017/
• http://www.glenclarkco.com.au/uploads/37970/ufiles/Steps%20to%20install%20
grid%20connected%20solar%20power%20systems.pdf
• http://www.re-solve.in/perspectives-and-insights/solar-pv-plant-performance-
capacity-utilisation-factorcuf-vs-performance-ratiopr/
• https://en.wikipedia.org/wiki/Grid-
connected_photovoltaic_power_system#Operation

12. THANK YOU