Solar Rooftop Scenario – Maharashtra

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Maharashtra State Net metering policy highlights

Eligible Consumer
  • Wants to setup a Solar Plant up to a maximum capacity of 1 MW (subject to Technical Constraints explained ahead)
  • On Rooftop or any other Mounting Structure (Ground, Shed and Superstructures etc) in his premises
  • to meet all or part of electricity requirement including Consumer catering to common load (Housing Society Community Halls, Pumping stations etc)
  • Such System maybe owned by Consumer directly or by 3rd Party leasing such system (opening up the market to investors who will setup the power plant FREE to sell electricity to the consumer at a cost less than what Distribution Companies offer)
Capacity Limitation (Due to transformers)

The cumulative capacity of all solar plants connected to a Distribution Transformer (which is the closest grid transformer from which we receive electricity) should not exceed 40% of its capacity. The Distribution Company may allow for more after conducting a Detailed Load Flow Study,

The Distribution Company shall:
  • Put on its website, the information of available capacity of Distribution Transformers within 3 months (10th Dec, 2015) of the notification (10th Sept, 2015)
  • Update the capacity available quarterly within 1 month of ending of the quarter
First Come & First Serve

Since there are technical limitations set out in the policy for the maximum capacity of Solar plants that can be connected to the distribution transformer of the Electricity Distribution Company, the permission for Net Metering would be given on First Come, First Serve basis with a priority to already installed Solar Plants.

Duration of net metering agreement

After the approval for Net Metering, but before the commissioning of the system, the distribution company and the consumer would enter into a Net Metering Agreement for a duration of 20 years.


1kW solar system in Valsad

Smiling Sun : 1kW Solar Rooftop System in Valsad

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A professor in Valsad District of Gujarat installs 1kW Solar System on roof of his house

Dr. Uttam Patel is a professor in Vanraj Arts and commerce college. He wanted to source energy solar energy for his day to day requirement of electricity. So he posted his requirement on SolarConnect for a 1kW system on his house in Valsad, Gujarat.

Ezysolare team worked on the information provided by Dr. Patel and prepared Solar Energy Assessment Report and Plant Layout Designs for his Solar System.

Soon after this Dr. Patel got a call from Mr. Hiren Kabaria from Samvit Energy. Samvit Energy is a verified Solar System installation company registered on SolarConnect.

The duo discussed the requirement, negotiated on terms and conditions, and decided to work together to set up the 1kW Off-Grid Solar System on Dr. Patel’s house.


Solar Rooftop PV Plant Target for The Financial Year 2016-17

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The Ministry Of New and Renewable Energy ( MNRE ) is implementing a Grid connected Rooftop and Solar Power Plant Programme. The Government has set a target of 40,000 MWp of grid interactive rooftop solar (RTS) PV plants by 2022. These RTS plants will be set up in residential, commercial, industrial, institutional, Government or PSU sectors ranging from 1kWp to 500kWp capacity.


Trend Analysis on Solar PV Module Prices

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Figure 1-Solar PV Installation Capacity

With rising solar photovoltaic based power development across the globe, there is more competition in the PV industry as manufacturing segment and downfall of various cost component that results in better deployment for solar manufacturing and price cut. Module Pricing Note describes the change in the pricing trends of the solar photovoltaic modules in various region i.e. Germany, East Asia, South east Asia, North East Asia as these market are highly demand oriented. In this analysis note solar PV module cost (INR/Wp) has been covered as Indian Solar Industry is moving with CAGR of 95.60% YoY since 2010 and expected to grow at the rate of 61.67%  YoY in next 6 year. Presently, In solar industry, the most important thing which decides Cost-Benefit ratio of the project is the price of Modules. Instead there are so many other factors also, but the present focus is on modules since the cost of solar cells fluctuates at very higher rate as per the market or demand. The change in $ (share prices) value also effects the INR values and 85-88% of the installation are based on the imports from the off shore companies.


Techno Commercial Analysis of DC Overloading in Solar Photovoltaic Power Projects

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The concept of overloading is not new. And it has its own pros & cons

Lets walk through the Techno commercial analysis of DC Overloading in Solar Photovoltaic Power Projects

The Inverter has been overloaded on DC side due to the following list of benefits:

  • Inverters are power converting devices which merely convert the energy received by them, hence in order to maximize the generation in a solar power plant, the DC side is generally overloaded to a certain limit. The input energy received by the inverter is dependent on the solar irradiation which varies throughout the day. The morning and evening period generally witness low levels of irradiation. Connecting higher DC  to inverters helps transmit higher energy to inverter, hence increasing the inverter output during these low irradiation conditions leading to significant gain in energy overall.


Getting MNRE Exemption on Rooftop Solar Projects

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As was discussed in the ezysolare webinar last week, one of the key benefits available to Solar Power Projects is Exemption from paying Excise Duty and Customs Duty on Equipment used in setting up a solar power plant.  Till recently, this was a privilege available only to large Utility Scale power plants. However, according to the Office Memorandum issued on 28th November, 2014, the benefit of Excise Exemption is available to rooftop and off grid solar projects as well. This helps in saving the Excise Duty of 12.5% on most Solar Equipment, thus, reducing the cost of installation.

Office Memorandum on MNRE Exemption for Rooftop Projects


Dialogue on Maharashtra Net Metering Policy 2015

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Maharashtra released its Net Metering Policy on 10th September, 2015 and soon, ezysolare followed that up with a workshop in Pune last week to discuss the nuances. So, read on to understand the Policy, Technical, Financial and Policy aspects of the policy here.

Download The Policy

The Background

National Action Plan on Climate Change in 2009 introduced Renewable Purchase Obligation (RPO) according to which 0.25% of India’s power consumption should be consumed from Solar Power – an increase of approximately 3,000 MW every year. Soon, the then Manmohan Singh Govt  launched National Solar Mission with the objective to setup 20 GW of solar by 2022 and the current.