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Hi all, Our apartment association is considering going for partial solar solution to meet its needs and below is our requirement – Our monthly association EB usage is around 700 units. We are looking at installing a 2.5 KW solar system (with hybrid inverter) that will help us eliminate day time genset backup during summers. We would like this system to supply to 2 fans connected in each of 15 flats in our apartment to the common (association) EB grid. We would like to explore the feasibility of net-metering since beyond the backup, we have scope to route back to the grid and save on costs – esp. since we are falling in the highest slab of EB tariffs. Our association EB connection is a 3-phase system that supplies for a lift, motor and common lights. We are not looking for battery bank backup because of the above exclusive day time requirement. Location: Hyderabad, Andhra Pradesh Some questions we have are: 1. We are assuming that ‘Islanding Protection’ will ensure that in scenario of grid-failure or load shedding, our solar system would still be active within our apartment for the select points we have planned for. Is this a correct assumption or is it total shutdown/blackout if the grid fails? 2. Is the above setup feasibile with net-metering? Esp. since our solar generation is partial and is required to meet the daytime backup for select points (for which wiring is already in place – for genset backup). We only want to avoid daytime genset backup and save on the cost – esp. during summer load shedding. 3. Is the 20% AP state subsidy announced only for net-meter or is it for the entire system? Is this subsidy available for off-grid solutions as well? 4. MNRE indicative costs are way less than what it practically works out!! MNRE guideline cost for a SPV system without battery is Rs.100 per watt. 2.5 KW (without battery) guideline cost = 100*2500 = 250000 After MNRE 30% subsidy = Rs.175000 If AP state subsidy of 20% is applicable = Rs. 140000 I have since enquired with three top companies and I am getting quotations raging from 3Lakhs to 3.5 Lakhs!!! And this is post subsidy, which is makes it almost twice the guideline cost!! Am I missing something or is there plenty of scope for negotiations :)? Thanks in advance for you expert opinions/suggestions. Thanks & Best Regards, Srinivasan M

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Hello Srinivasan,

It sure seems that you have researched the matter a lot! We are always happy to see people making an effort to understand and implement the technology and I will be happy to answer your queries. So first of all, I think may know this, NREDCAP is the one taking care of net metering, so you may want to direct questions to them about this. 1. ”Island Protecting”: For Net Metering, this is a required criteria as per NREDCAP guidelines. This will protect your SPV system in case the grid fails. 2. Feasibility: Your system is definitely compatible. However, you CANNOT have battery backup with the system of net metering to avail the subsidy as per what I understand. You will have to check on this. 3. Subsidy: The subsidy announced is actually 30% but only on the cost of panels, not on the entire system. You cannot avail the AP subsidy for off-grid system, unless there is another subsidy that they have especially for off-grid systems. Good thing is that you can avail MNRE or central subsidy on top of this subsidy. 4. Costs: This is a tricky part and you should be aware what you are buying. MNRE’s guidelines might not include installation which other companies might be charging. Also, many companies claim that they are giving subsidies but actually dont. Make not of warranty that they are giving you, extended warranty panels do cost more. Cost depends a lot on type of panels and the associated efficiency. If you do decide to buy the panels from us, we can match and give you a better cost, with a more trusted support! Let me know if you have any other doubts, I hope you get an amazing system at a great price and your society can lead as an example for others. NREDCAP press release: http://cm.ap.gov.in/25mar13press.asp

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Hi,
you can check catalogue for cost of various kind of solar panel. They have wide selection in this matter. They will also guide all about panels.
Link — [Solar Panels][1]
Hope they will clear all your doubt about pricing.
Thanks

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Hi,

Yes if you use [solar PV net metering][1] for backup energy it will be very useful to your apartment. for detailed information about net metering visit to this page

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A good contribution towards the safety of our environment. Installing solar panel will not only reduce the electricity consumption but also save money in the long run. Here is a link where you can get all the required information regarding solar panel installation: Residential solar panel installation in Pune.

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Check out Residential solar system installation in Nagpur for all the information regarding cost and solar panel system.

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Net metering allows you to sell excess (unconsumed) solar power back to the grid. For example, if on a given day you generated 20 units from solar and consumed only 18 units, the balance 2 units will be sold back to the grid. This ensures that you maximize your [savings from solar][1]. Click here for more information.

With the right size solar energy system, you can produce enough electricity to match your home’s electricity use for the entire year. However, the amount of electricity your solar panels produce will vary throughout the year. Net metering (also known as net energy metering, or NEM) helps you account for these differences by crediting you for the excess electricity your panels produce so you can use it later.

While net metering is not the only way that utilities compensate homeowners for going solar, it is by far the most common: as of 2016, 41 states and Washington D.C. have mandatory net metering rules, and two more have utilities that permit the practice. To find out the policies in your state, use the Database of State Incentives for Renewables and Efficiency, which tracks net metering and other policies.

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Hey,

We’re Gurmer from . Net metering process is required to install On grid solar system. There are some certain terms and conditions in on grid solar system installation, such as:

Government never allow maximum loads than previous loads
You should have proof of electricity bill for your residence
Approx 45-60 days will take time for completion of whole Net-Metering process.

For more detail about Net metering for [on grid solar system][1] installation from technical person, you may visit Solar site.

Solar has installation approx 500 installation across India.

Thanks,

Gurmer

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