(603) 279-3344

Planet Green, Solar Design and Installation
8 Northview Drive, Meredith, NH 03253

What is solar energy?

The sun emits electro-magnetic radiation which can be captured and turned into heat and electricity.

How does solar work?

Electro-magnetic radiation (referred to as irradiation) hits the solar modules in a solar panel as the sun’s rays cover the solar panel. There they convert photon energy (a discreet bundle of electro-magnetic energy) into DC current. DC current can then be utilized as either direct power (like a battery powered objects) or sent to an inverter to convert to AC power.
k which then is used for domestic purposes.

What is a kilowatt (kW)?

Usage of electricity is measured in watts, kilowatts and megawatts. A 100 watt light bulb uses 100 watts of power for each hour of operation. If it is burning for 10 hours it will consume 1,000 watts. 1,000 watts equals 1 kilowatt. 1,000 kilowatts equals 1 megawatt. If the same bulb burns for 10,000 hours it will consume 1 megawatt of power.

What is a megawatt (mW)?

A megawatt is 1000 kilowatts. Power plants and solar production fields measure their production in megawatts.

What is net metering?

A program allowing electric producers to roll over credits for excess electricity production to future utility bills or sell back to the grid at a predetermined rate.

What is a solar panel?

A solar panel is a collection of solar modules which are designed to absorb photon energy and convert it to electricity.

What is group net metering?

The ability to use the net metering program powering multiple meters or consumers from one production source.

What is a solar panel?

A solar panel is a collection of solar modules which are designed to absorb photon energy and convert it to electricity.

How much energy does a typical solar panel produce ?

The panels are rated in watts. A 250 watt panel produces 250 watts in one hour. Twenty 250 watt panels on your roof will produce 5,000 watts per hour.

What is an inverter?

An inverter is a device which converts the DC power produced from solar panels into AC power which can then be used to power a household, business, or be dumped onto the grid. Inverters for solar PV are rated to their load values. A 5 kW inverter can convert 20-250 watt panels into 5,000 watts of AC power each hour.

What is a SREC?

Solar Renewable Energy Certificates are certificates which are given to producers who create a megawatt of power. Each SREC has a tradable value which is market driven. The additional income derived from these SREC trades adds a further financial viability to the owners of solar producing systems. The SREC trade market is valid for 10 years after a system is commissioned. As an example: forty 250 watt panels produce 10,000 watts per hour. The same system will produce 16,425 kilowatts per year. That would be equal to 16.425 megawatts per year which earns 16 SREC’s. SREC’s traded on the open market (through a licensed trader) can be worth between $25 – $600 per certificate.

What is a state grant?

States set-up a fund to encourage people and businesses to invest in solar PV. These funds are paid out when the systems have been commissioned and the proper paperwork is completed and filed with the State PUC. These grants are usually taxable.

What is a tax credit?

The IRS offers a tax credit for renewable energy systems. They have set the limit of 30% of total contract value without an upper limit. For every $100,000 spent in solar PV you are eligible to take $30,000 off your corporate or personal tax burden. If you owe $35,000 in taxes you subtract $30,000 from $35,000 and pay $5,000 in tax.

What is a federal grant for solar ?

The USDA offers grants for projects that qualify as rural farms or small businesses. The grants value is from $50,000 upwards to $500,000. The larger the grant amount the more work to prepare the grant. The NHBFA offers a Federally-backed loan program which can cover 25-50% of the contract costs. Minimum project amount is $100,000.

What is a ground mounted solar PV system ?

A ground mount system is built when the roof angles are wrong, the roof has too many shade issues to make a system valuable or the structure is too insecure to add additional weight to it. Typically a ground mounted system is a galvanized steel structure designed to hold 20-30 panels. Each grouping is called a table. A ground mounted system can overcome building/roof limitations with the added bonus of being built to capture the sun’s rays at the optimum angle.

What is a roof mounted solar system?

A roof mounted system is a solar PV system mounted to racking installed on the existing roof. A roof mounted system will increase the life expectancy of your roof by many years. Typically if you have a new shingle roof with a 20 year warranty, a solar PV system which covers all of the exposed south face will increase the life of the roof by approximately 10 years.

What is a solar carport?

A solar carport is a structure built to house solar panels to generate electricity that also provides shelter for cars and trucks by parking under the roof tops. This application allows individuals or businesses to take advantage of large parking lots which otherwise would only provide one function as a parking space.

What is a solar farm?

A solar farm is a site specific parcel of land designed and built to hold large numbers of solar panels and inverters to create electricity for the grid. A solar farm is the ‘earth friendly’ version of a fossil fuel driven power plant.

What is excess power to sell?

If you have a system which produces 20,000 kilowatts per year and you only consume 10,000 kilowatts, you then have 10,000 kilowatts to sell back to either a: the utility or b: to an aggregator who will sell your excess power on the open market on your behalf.

What is renewable energy?

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are naturally replenished (renewable). Naturally replenishing energy means the energy source renews itself without action or interaction with man.

What is fossil energy?

Fossil fuels are carbon producing fuels such as wood, coal, oil and gas.

What are transmission fees?

Transmission fees are cost levied by the local power company to deliver electricity to your home or business. Typically the further the delivery point the higher the transmission cost are.

What is an aggregator?

A person or company licensed to buy and sell electricity. An aggregator negotiates with your existing utility to provide a better kilowatt price than you presently pay. An aggregator is also licensed to sell SREC’s on your behalf. In effect you deposit your SREC’s in an aggregator’s solar bank which are then sold for you.

What is a solar hot water system?

A solar hot water system is a system that uses the suns energy to heat glycol in a solar thermal panel which then travels down to a heat exchanger. In the heat exchanger, the hot glycol heats the heating elements in a hot water tank which then is used for domestic purposes.


Tel: (603) 279-3344
Planet Green
8 Northview Drive
Meredith, NH 03253


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