About Solar City

The Solar City aims at minimum 10% reduction in projected demand of conventional energy at the end of five years, through a combination of enhancing supply from renewable energy sources in the city and energy efficiency measures. The basic aim is to motivate the local Governments for adopting renewable energy technologies and energy efficiency measures. In a Solar City all types of renewable energy based projects like solar, wind, biomass, small hydro, waste to energy etc. may be installed alongwith possible energy efficiency measures depending on the need and resource availability in the city.

Objectives of the Solar City programme

• To enable and empower Urban Local Governments to address energy challenges at City - level.
• To provide a framework and support to prepare a Master Plan including assessment of current energy situation, future demand and action plans.
• To build capacity in the Urban Local Bodies and create awareness among all sections of civil society.
• To involve various stakeholders in the planning process.
• To oversee the implementation of sustainable energy options through public - private partnerships.

Assistance to Urban Local Governments

The program assists Urban Local Governments by providing financial assistance and technical help for:

• Preparation of a master plan for increasing renewable energy supply and energy efficiency measures in the city
• Setting-up institutional arrangements for the implementation of the master plan.
• Awareness generation and capacity building activities.
• Implementation of projects as per financial incentives under various programmes of MNRE.

Estimated potential of renewable energy

The increased use of indigenous renewable resources is expected to reduce India’s dependence on expensive imported fossil fuels. India has an estimated renewable energy potential of about 1096 GW from commercially exploitable sources viz.
• Wind – 302 GW (at 100-meter mast height);
• Small Hydro – 21 GW;
• Bio-energy – 25 GW; and
• Solar Power - 750 GW, assuming 3% wasteland

Practice question:

1. Consider the following statements related to the solar technology:

1. In Concentrated Solar Power cells the light energy is directly converted into the electricity.
2. Under Net-Metering Technology consumers can generate solar power for self-consumption and also supply it to the Discom.
Which of the statements given above is/are correct?

(a) Only 1

(b) Only 2

(c) Both

(d) None

Ans. (b)
Exp: A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Solar cells are the building blocks of photovoltaic modules, otherwise known as solar panels.
Concentrated solar power (also called concentrating solar power, concentrated solar thermal, and CSP) systems generate solar power by using mirrors or lenses to concentrate a large area of sunlight, or solar thermal energy, onto a small area. Electricity is generated when the concentrated light is converted to heat, which drives a heat engine (usually a steam turbine) connected to an electrical power generator or powers a thermo chemical reaction.
Under Net Metering consumers can generate solar power for self-consumption and also supply it to the Discom.