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Hybrid Solar Primus Wind Turbine Off-Grid Pre-Engineered Kits

hybrid wind solar
  • Off-Grid Power with MidNite Solar & Primus
  • These pre-Engineered packages combine one of the worlds best top brands of small wind turbines & pre-wired power centers. Mechanically and electrically engineered, every component of this kit has been specially selected to assure the highest performance in a safe simple-to-install system. Hybrid stand-alone power system technology has advanced with the pace of the number of homeowners who want to live off-the-grid. In areas of the country with an average sustained winds of about 14 MPH, good exposure to prevailing winds like the top of hills or clearings at a 98 ft. height are generally considered to have a suitable wind resource for small wind applications. Primus Wind Power is located in Colorado USA and is a division of a leading manufacturer of high-precision assemblies and components for the energy, aerospace, defense and medical industries. MidNite Solar and Primus Windpower, American companies producing products made in America, creating American jobs. We like it... a lot!

Click the Tab Above ⇑ Planning Design & Installation Tips along with the Video Tab to Learn More.

Initial Planning Steps: “Do I have a good site for wind power?”

  • permitting serviceConsult Wind Resource Maps: Click on the planning, design and installation tips tab above where you will find a resource map link for wind and solar. Use these maps to determine how much wind and solar in your area is available.
  • Airport Wind Speed Data: Though not definitive, your nearby airport can provide good information about the average local wind speed for your area. You need to be a little cautious because the information recorded at the local airport may be on land that is flatter and less obstructed than your lot and is usually measured at heights of 20 - 30 feet off the ground.
  • Use a Wind Speed Measuring System: Though not as accurate as more expensive system, you can purchase for under $60 equipment to directly monitor your sites wind speed allowing you to record to your satisfaction your available wind resource. (Tech Solar Transmitter Wireless Weather Station WA-1070T.) The measurement equipment must be set high enough to avoid buffering created by buildings and trees. The best location would be at the top of the proposed tower height you intent to place your turbine.
  • Zoning, Permitting and Local Restrictions: Before you invest in a hybrid wind power system, you should check with your local code officials and association (If Applicable) to find out if there are any restrictions. In addition to zoning issues, your neighbors might object to a wind turbine that interferes with their view.
  • Height Restrictions: Some towns or HOA have restrictions on the height of structures in their zoned areas. Althought you can sometimes get a variance, many zoning laws limit the height to 35 feet.
  • Noise Issues: Small wind turbine noise is only slightly above wind noise. (Click On Video Tab Above) You may be able to pick out the sound of a hybrid wind turbine if you strain to listen but most people would not find it objectionable. However, if there is any doubt if your wind turbine will disturb your neighbor, be a good neighbor and have a conversation with the family living next door in advance.
  • Shadow Flicker: Shadow flicker occurs when the blades of the wind turbine rotor cast a shadow across nearby windows. This shadow can have a disturbing effect sometimes referred to as the strobe light effect. Small turbines are less of a problem but you should give it some thought.
  • Birds: There is no way to dance around this discussion. Wind energy does kill some birds some of the time, but no more than tall structures and most sources of energy.

Plannning Design & Installation Tips

The size of a solar electric system depends on the amount of power that is required (watts), the amount of time it is used (hours) and the amount of energy available from the sun and wind in a particular area (sun-hours per day & wind average MPH). The user has control of the first two variables, while the third depends on the location.

primus

living off-grid Estimate Your Loads. The BIG Question You Need to Answer First:

  • List your loads. How many watts per day does or will your household consume? The most important challenge in an hybrid solar wind off-grid system is to balance your energy consumption with your supply of energy required. You cannot begin to do that without first knowing how much energy you need each day.
system design energy calculationsEnergy Load Worksheet (Excel)


IE: 5 - 13 watt light bulbs X 5 hours per day = 65 watts. 18 CF refrigerator @ 5 amps x 120VAC = 600 watts x 6 hours per day = 3,600 watts. THIS IS IMPORTANT: When we say "list your loads ", we mean all your loads. From the cell phone chargers to a hair dryer. Need Help? If you download the Excel worksheet you will only have to indicate how much of each piece of equipment you have and how long your run it.

living off-grid Wind Turbine Site Selection & PV Sizing; Input Must Equal Output.

(A) The size and or number of solar panels is calculated from the total energy requirements + allowing for wire and inverter transmission loss (20% rule of thumb) less the lowest solar irradiance available in the area of the system which is usually the shortest daylight month of the year (December). In a hybrid system, you are not only considering the solar array but also the average available wind for your area. The combined input of both systems must equal your daily output during the shortest day of the year or you will certainly strain your battery bank capacity.

lowest peak sunhours hybrid solar wind

site considerations

living off-grid Choosing Your Battery Bank:

Battery bank sizing is the part of the hybrid solar wind system that has a higher probability of causing you problems that other parts of your system. Use the battery sizing worksheet to help you through this critical stage. Factors such as your budget may tempt you to look to cheaper battery alternatives but a quality battery will pay off over the years. We recommend you choose a 2VDC or 6VDC battery and connect them in series so that the total DC volatage equals the system voltage. Do NOT put more than 3 banks of batteries on one charge controller.

● Click the Battery Bank Size Tab Above ⇑ to Learn More.

living off-grid Power Center inverter

The MidNite Solar E-Panel MNEMS4448PAECL150-BMK pre-wired power assembly that features advanced solar power electronics for off-grid, backup and on-grid functionality in one unit. Flooded, Gel, AGM, Lithium-ion battery compatible. 48 VDC battery based inverter. The Magnum Energy 4400 Watt 120/240VAC 30 AAC output inverter produces pure sine wave clean electricity drawing power from the energy stored in a battery. NEC code compliant the MidNite 3600 Watt E-panel kit is mechanically and electrically engineered with every component specially selected to assure the highest performance in a safe simple-to-install DIY package. [● On-Grid Definition - Utility grid power is available for use and the system is will connect to work in parallel with the solar panels to recharge the battery bank but inverter/charger is not capable of exporting electricity (selling) back to the utility grid.]

hybrid wind Electrical Distribution Parts

Combiner / circuit breaker box is a key piece of equipment that begins to bring the system production together that allows you to generate electricity. NEC (National Electrical Code) says that each series of strings of panels are to be wired to it's own circuit breaker. Midnite Solar and OutBack combiner boxes make this task easy providing a breaker to turn off and on each string for any purpose. The combiner box is usually located directly under a ground mount array or on the wall directly below the roof mounted solar array in conjunction with a locally supplied junction box at the edge of the rooof arran. (Transition to conduit down to the combiner in that curcumstance.

Wire size and breakers are the final items in your hybrid solar wind design to consider, but no less important. To have a safe off-grid system, you will need to install breakers and choose the right size wire. If you select one of our pre-wired power systems with your kit, we do all the heavy lifting for you because right size breakers are pre-engineered and pre-wired into each of our power centers. You simply have to hang and connect it following our wire diagram which is supplied with all our kits. It is no accident you will only find Midnite Solar and OutBack combiner boxes built into our off-grid systems. They are reliable, UL listed and simple to install.

The distance between the combiner box, which is usually located near the solar panels, and the charge controller will be a factor in choosing the best string voltage for the charge controller and battery system. The higher the input voltage the smaller the wire can be for any given amount of power. For example, a system with a 12 volt battery and solar panels consisting of four 6.75 amp 12 volt DC nominal modules located at a distance of 40’ from the batteries could have the modules wired in series, parallel or series and parallel. Input design possibilities in this example are 12, 24, and 48 volts DC. If the panels was configured with the panels wired in parallel the input voltage would be 12 volts DC with an input current of 26 amps. The same panels wired in series would have an input voltage of 48 volts DC and an input current of 6.5 amps. In this example #1, the 26 amp 12 volts DC panels #1/0 wire, which is prohibitively expensive, would be required to limit voltage drop to 2% which is recommended for 12 volt DC systems. The same panels wired for 48 volts dc would only require a #8 wire. With the #8 AWG wire the 12 volt dc panels would have to be within 7’ of the batteries. The distance that #8 wire can be used is over 5 times greater at 48 volts DC than 12 volts DC.

The amount of current (amps) traveling through any electrical circuit depends on the size of the wire (AWG), the voltage of the array or battery bank, and the one way distance of the wire run. Lower AWG gauge wire has less resistance than larger gauge wire. The longer the distance of your wire run while using lower voltage the larger gauge wire you are going to need. That is the reason we highly recommend a 48VDC battery based system.

primus

Hybrid Primus Wind Magnum Energy Off-grid Battery Based Power Systems

grid-tied 300W Panel Kit Item # # Solar Panels Daily Array Watts
Based on 4 Sun Hours
(*STC) Average 13 MPH Wind
Voltage DC (Battery)
/ AC
Price before
30% Federal Tax Credit
or Local Incentives
0.9 kW Hybrid Kit 0.9 kW Hybrid Kit PRIMAGMS-48-900 3 - 300 Watt 4,500 Watts 48 / 120/240VAC
1.8 kW Hybrid Kit 1.8 kW Hybrid Kit PRIMAGMS-48-1800 6 - 300 Watt 8,100 Watts 48 / 120/240VAC
2.7 kW Hybrid Kit 2.7 kW Hybrid Kit PRIMAGMS-48-2700 9 - 300 Watt 11,700 Watts 48 / 120/240VAC
3.6 kW Hybrid Kit 3.6 kW Hybrid Kit PRIMAGMS-48-3600 12 - 300 Watt 15,300 Watts 48 / 120/240VAC
4.5 kW Hybrid Kit 4.5 kW Hybrid Kit PRIMAGMS-48-4500 15 - 300 Watt 18,900 Watts 48 / 120/240VAC
5.4 kW Hybrid Kit 5.4kW Hybrid Kit PRIMAGMS-48-5400 18- 300 Watt 22,500 Watts 48 / 120/240VAC

wind speed TIP: The power output of a wind turbine decreases roughly 3% for every 1,000' of elevation above sea level due to lower air pressure.

Measuring Wind Speed

If you do not have a wind gauge, you can get a rough idea of wind speed using the guidlines below.

  • 0-1 MPH - Smoke rises vertically
  • 2-3 MPH - Direction of wind shown by smoke drift but not by wind vanes.
  • 4-7 MPH - Wind felt on face; leaves rustle; ordinary wind vane moves
  • 8-12 MPH - Leaves and twigs in constant motion; wind extends a light flag
  • 13-18 MPH - Raises dust, loose paper; small branches are moved
  • 19-24 MPH - Trees in leaf begin to sway; crested wavelets form on water
  • 25-31 MPH - Large branches in motion; whistling heard in power lines/

Ok, You Are Satisfied You Have Enough Wind in Your Area, Now What?

Now, it is time to consider site specific issues associated with installing the hybrid solar wind system. The most important factor in maximizing the performance of your wind generator is the correct siting on your property. The better the siting, the greater the performance. Small increases in average site specific wind speeds result in dramatic increases in energy output of your wind generator. For example, an increase in wind speed of 10% (10 mph - 11 mph; 4.5 m/s - 5 m/s) results in approximately a 30% increase in the power available from the wind. Therefore, the better the location the better the performance. As a rule, the small wind generator should be mounted as high and as far away from obstructions as possible.

● Two basic necessities for a good hybrid site pick are average wind speed and low ground turbulence. The lower the turbulence or buffering, the less stress you will put on your wind generator and the more energy it will produce.

● A good rule of thumb if your tower is downwind from a building it should be 20' - 30' above the height of the building as well as any barrier such as a stand of trees that are closer than a 500' radius.

● Surface Roughness: Rough ground is land covered with small bushes, trees or other obstructions. Smooth land is an area covered only by grass or dirt. The smoother the ground, the less the friction. The rougher the ground the greater the friction, thereby requiring the tower to be higher.

● Place your tower on the highest land point around your home as practical. There are circumstances where the highest point available may not be the best place for your tower. Highest land nearby may be awkward to get to, may be too far away from where you need the power, or may expose your wind turbine to potentially damaging turbulent conditions.

● How high is your tower? Hands down, the biggest mistake a homeowner can make with a small wind turbine is putting the turbine on too short of a tower. Like solar in the full sun with no shade, any renewable energy source must have good access to the fuel that drives the electricity. There is nearly 100% more power available in 10 MPH winds than 8 MPH winds.

Attaching anything related to a wind turbine to your house is a bad idea.

hybridNever attach the tower to your house. If the tower were attached anywhere to a structure, the structure itself would begin to vibrate ever so slightly. This reverberation would vibrate the building with the possiblity over time of structural damage.

Personal Technical Advisor

Line drawing questions or just stuck? No worries we have your back and will be here to help whenever you have questions about your purchased kit or plans. For orders larger than $2,000.00 a Technical Sales Team Group Captain will be assigned your account. Your Technical Advisors job is to coordinate all parts and pieces of your order and to work with you throughout the process. This support helps because we will be providing you with a single contact point to call with your questions. Your technical support contact does not replace the maufactures warranty technical support. DIY means you accept the responsiblity of reading and following the plans and other installation documents prior to tackling the installation.

Related Items; Solar Grid Tie & Off-Grid Kits

    hybridSAFETY WARNING: Danger to life due to high voltages. Risk of death or serious injury due to electric shock. Always employ the services of a licensed local electrician or other properly trained and qualified persons to complete final connections.
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