General
Thanks to state and federal incentives, operators of solar power systems are guaranteed remuneration from network operators for any power fed into the grid. Additionally, when viewed in terms of the overall economy, power generated from renewable energies has a cost-cutting effect.
Yes, Solar power is clean also produces no harmful emissions, and is also silent.
No. However, our resources are becoming scarce such as Oil, natural gas, and uranium. The energy from the sun is practically inexhaustible and is available to anyone, anywhere.
To make sure we look after our natural assets for the next generation; we should only use what can be replaced. Solar power is regenerative.
Yes, the “Off Grid” solar system is totally independent of power utilities however due to involvement of batteries it is not the most economical system. Most economical system would be “On Grid” solar system by which you can reduce the consumption from utilities. Where utilities can not reach such as remote places, hilly area etc there “Off Grid” system is beneficial.
Solar energy is clean as it does not produce any harmful gases like carbon di oxide is produced in coal thermal power plants, it does not produce any hazardous chemical waste as produced in nuclear thermal power plants. It does not contaminate air, water or soil. And as there is new improvement is being made everyday in solar it is becoming more efficient and economical hence becoming feasible and more accessible to masses.
GO SOLAR
GO ROOFSOL ENERGY!
TECHNICAL
• The radiation of the sun lands on the solar photovoltaic (PV) panels and electrons inside the panels get unhatched from their bond.
• The free electrons generate an electric field which results in the generation of direct current (DC) electricity.
• Then the direct current (DC) is further converted to the alternate current through inverters which is usable to the local distribution grid.
• Generated power from the solar panels is further monitored using a data logger.
• Then finally the generated electricity is further distributed to the grid which is used in homes, industries and commercial units.
Monocrystalline and Polycrystalline panels are usually used for maximum solar installations. These solar panels differ in some metrics like cost, built type, performance, and appearance.
In the on-grid, your solar system is bonded with your local utility grid. If the generated electricity from the panels is more than the electricity which you are using, the excess power is transferred to the grid power company which is taken care of by the net metering policy of that respective state.
On the other hand, the off-Grid system works independently without being connected to the grid power system or the local utility company. Off-grid system holds you 100% self-sustaining of your electricity generation and usage. However, there is some adverse circumstance as you need to purchase your backup energy in a battery that is not environment friendly and also expensive, vanquishing the purpose of going solar.
Yes, an electricity bill shall be received unless you are completely off the grid. The fixed charges component in the bill will remain the same which is almost 10% of your total bill and the rest 90% can be considerably reduced with help of a Solar PV Plant.
Net metering is a system that credits bills to the extra usage of electricity above the usage of your solar energy generated by your Solar PV Plant. E.g., If a home/industry has a Solar PV plant and uses the electricity generated by the plant during the day and if the usage exceeds during the night, then your home/industry uses electricity from the grid. If your home/industry is net-metered the usage of electricity is accounted for and will be charged upon the exceeded usage per month.
Yes, a nominal cost will be charged to replace your meter with a bi-directional energy meter as per the process of your local DISCOM, A professional assistance will be given by Roofsol Energy for the process.
A data monitoring device also called a “data logger” is installed along with your Solar PV System to track your system’s performance. The device allows you to analyse the estimated performance with your actual performance on a daily, monthly and annual basis.
Solar PV panels generate electricity in form of DC (i.e. Direct Current) which needs to be converted to AC(Alternating Current) for residential or commercial usage the conversion of DC to AC is done by the solar on-grid inverter, which not only converts DC to AC but also synchronizes the solar power with the grid power. Therefore, the total installed Solar PV panels capacity is called DC capacity which is written in form of KWp, and the total capacity of installed inverters is called the AC capacity which is written in form of KW. The DC to AC ratio is generally kept at 1.15-1.25.
The DC is generated from solar panels and carried to inverter where it is converted in AC and then it is fed to load. From generating point till conversion there are lot of losses which happen in system like IAM loss, LID loss, temperature loss, wiring loss, inverter efficiency loss etc which accounts to about 15-25% hence the DC capacity is taken on higher side so that at the peak the AC capacity reaches to maximum i.e. rated capacity.
One solar PV panel takes a rooftop area of 2 – 2.5 sqm, and per KWp the space required is 9 – 10 sqm. Per KWp on average Solar PV Plant generate 1400 – 1500 units per year. So typically, if you have electricity consumption of 5,000 units per month i.e. 60,000 units per year, you will require a solar plant of 35 – 40 KWp to bring your electricity bills drastically down. The area required for a 40KWp Solar PV Plant will be 400 sqm or 4,000 sq ft.
Solar PV panels are installed on Metal Sheet Rooftops, RCC rooftops and also can be installed on the ground space provided by the client on their premises. Roofsol strongly recommends not installing solar PV Panels on cement sheets or asbestos rooftops, due to their brittle nature, it is not safe from the maintenance point of view.
FINANCIAL
The direct benefit is the immediate reduction in electricity bills. Going Solar is an undoubted investment, this will not only save money on your current electricity bills but also assure escalation price on the rising electricity rates in the future. The amount saved depends upon the capacity of the plant, solar policies, and grid rates in your locality.
The outermost layer of any solar module is made of durable tempered glass which requires minimal maintenance in a clean environment although regular cleaning of the modules is necessary for a dusty atmosphere. Physical damage on the solar module is ensured by the manufacturer in case of warranty purchased, depending upon the warranty terms of the company. The only major maintenance to be carried off in the Solar PV Plant is to regularly clean the panels in order to assure there is minimum dust formation and generation is maximum. Generally, the frequency is set every 15 days but depends on locations.
A flawless Solar system is highly durable and tenacious, although most of the primary components of the solar system like modules and inverters are generally insured by the manufacturer depending upon the terms of the insurance. Although it is advisable to buy insurance because solar is like any other asset that you own.
With the National Solar Mission, most of the Banks in India are promoting the adoption of Solar Energy Extensively they too provide numerous insurances for your Solar PV system. It is recommended to opt for policies under burglary, fire, terrorism, machine breakdown, and public liability.
Your ROI is calculated based on return on investment till the total payment of your PV system is recovered which usually takes up to 2-3 years for commercial and industrial users and 3-4 years for residential users. Once contracted cost of your Solar System is recovered the power generated by it for the further 15-20 years is accounted as free with negligible maintenance cost.
In a RESCO/OPEX model, the energy is bought from a PV plant that is owned by an investor or RESCO developer. The end consumer pays for the power generated under a long-term Power Purchase Agreement (PPA) at an agreed tariff for a fixed tenure. The cost per Wp is usually higher than the cost per unit when you own a Solar System.
