How does Mi-Grid Save 90% Fuel?

How does Mi-Grid Save 90% Fuel?

A generator running all the time is not very efficient.

Generators must be sized for maximum load, even if that load only lasts a tenth of a second. This is startup surge. Surge current is the bane of generators; generators must be sized for maxi-mum starting surge, like starting a motor or air conditioner. Electric motors can take up to 5 times operating power to start them. All regular loads plus surge loads must be added together to decide on the generator minimum size.

This means the generator runs most of the time at low loads. Look at the chart. At 25% load, over a gallon per hour is used just to run the generator, while about 1/3rd gallon is used to produce electricity.

Mi-Grid instead cycles the generator, using it only to re-charge the batteries as needed. The rest of the time the genera-tor is shut off.

For example: an RV air conditioner operates with 1650 Watts, but needs 4000 Watts to Start.
Over 24 hours, the AC runs on average 30% of the time. 70% of the time the generator is idle. A 4Kw generator may use over 7.4 gallons of fuel per day, producing only 12kWh of electricity.

If the generator runs only at full load (4000 Watts), it would need run only 3 hours to produce the 12kWh, using less than 2 gallons of fuel. Even with conversion losses (10% in and 10% loss out), there is a reduction by 60% fuel consumption, simply by running the generator at maximum load. To further reduce fuel consumption, add 1000 Watts of solar panels attached to the RV. The solar panels will produce 6.5 kWh of electricity per day.

This will further reduce the amount of power produced by the genera-tor to 5.5 kWh per day. The generator will run less than 1.5 hours per day using .55/gal per hour, or about 0.825 gallons. This example shows a reduction.

What is the payback for Mi-Grid?

What is the payback for Mi-Grid?

Grid-Tied
Mi-Grid doesn’t sell power to the utility. It saves all of the extra energy in the batteries to use later. If the utility pays less for your solar power than you pay them for electricity, you save 30% more than if you sell your power.

Example: Electricity is $0.20/ kWh and the electric company buys excess solar for $0.10/ kWh. Our models show that approximately 50% of grid-tied solar is sold to the utility.

If 100 kWh is normally consumed in a day, the cost is $20. If 100 kWh of solar are produced, but 50 kWh are sold to the utility, $10 is avoided, $10 is purchased and $5 is paid to the end user. Net electric cost is $5. Net savings is $15.

Mi-Grid stores all excess solar energy produced. No power is sold, savings a full $20. This is a 33% additional savings over standard grid-tied solar.

The battery based system adds about 20% cost compared to grid-tied solar. This is more than off-set by the additional savings. Payback is faster than Grid tied.

Off-Grid
There are two type of systems for off-grid. 1) Off-Grid Solar. 2) A generator.

Off-Grid Solar
Off-Grid solar uses no fuel. But it requires a sizable capital investment. You must size the batteries to carry you through multiple days without sun. And the solar array must be designed to produce enough pow-er to recharge the batteries.

Mi-Grid uses a generator to cover contingencies. This allows the solar array to be sized for average power used and the battery bank sized just to absorb the extra solar power. This reduces the battery bank to about 1/3rd to 1/6th the size and reduces the solar array by 30-50%. Capital costs are reduced by at least 50%.

Generator
Generators need small capital investment for off grid. But this is quickly overwhelmed by operational costs.

Generators use fuel, but they also require maintenance. And Generators have a finite life.
Fuel costs are typically reduced by 90% when using a Mi-Grid when compared to a generator.
Generator run time is reduced by 90% as well. This increases calendar time between maintenance and increases calendar life of the generator.

Case Studies

Grid tied House
Electricity cost $0.20 per kWh
Avg. daily usage is 75kWh/day.
Mi-Grid 2000, installed with 11kWh of Solar. Cost $50,000
System will produce 71.5kWh/ day avg., or 26.1MWh/year. Savings is $5225/yr. US Tax Credit is 30% price of system.
Payback With ITC / Without
0.10— 13.4 years / 19 Years
0.20— 6.7 years / 9.5 Years
0.30— 4.5 years / 6.3 Years
0.35— 3.4 years / 4.7 Years

Food Truck
4kW Generator cost: $600, Generator life 1000 hours, 50hr Maintenance: $10, Gasoline $2/ gallon, Generator runs 50hr/ week, Average load is 1kW. 10kWh/day

Mi-Grid 250, with 1kW of solar installed: $7200
Average fuel consumption is 0.35 gal/hr. or 3.5 gallons per day, $35 per week. Generator life value is $0.60 per hour or $30/week. Maintenance is $10/ week. Total weekly cost $75

Mi-Grid will recharge overnight and consume 2.5kWh, $0.50, 1 kW of solar will produce 5kWh of electricity. Balance is 2.5kWh to be produced by the genera-tor. Generator will run 1 hour at 2.6 kWh load, 0.45 gal/hr. Total is 2.25 gallons per week, $4.5. Maintenance cost is reduced to $1/week and life cost to $3/ week. Total is $9/week, savings $66/wk.

US Government tax savings (ITC and MCARS) reduce system to $4122.

Payback is 62 weeks or 15 months.

Off-Grid House (weekends)
12kW Generator cost: $8000 life 10,000 hours. 500hr Maintenance: $100. Propane $2/gallon. Runtime:60hr/week. Average load is 2.5kW. 60kWh/ day, 1.32 gal/hr. $160/week. Maintenance cost/week: $12. Generator Life cost/week:$48. Total cost per week:$220.

Mi-Grid 2000, Installed cost with 10kWh of Solar. $50,000. After US Govt. Tax savings: $35,000. Produces 65kWh/ day.

Payback is 160 Weeks or 3 years.

Off-Grid House 7days/week
Generator runs 168hr/week. Average load is 2.5kW. 60kWh/ day, 1.32 gal/hr. $450/week. Maintenance cost/week: $35. Generator Life cost/week:$135. Generator cost per week:$620.

Payback is 56 Weeks or 1 year.

Off-Grid House Solar Only
Mi-Grid stores 1/2 day of solar. Fully off-grid needs 3 days of storage or 6x battery bank. Solar array 50% larger. No Generator. Total installed cost $98,900.

How does Mi-Grid Work?

How does Mi-Grid Work?

Mi-Grid
Mi-Grid is most similar to an Off -Grid solar energy system. It takes solar energy and makes DC power. It uses this power to run an inverter, making AC power, or stores it in batteries, or both.

How does it Differ?
Mi-Grid also connects AC power from multiple sources, a generator and/or utility power. In-stead of an oversized battery bank and solar array, it uses the generator as a backup. Mi- Grid is about half the cost of a similar off-grid solar system.

How is that different from regular solar on houses?
“Standard” Solar energy systems installed on residential houses are usually called “Grid Tied” or “Utility Connected”. They simply convert the DC power from the solar panel to AC power. It is directly connected to house power. They do not store solar power. Either the solar power is used locally or it is sent to the utility.

Mi-Grid Saves 30% more
Mi-Grid doesn’t sell power to the utility. It saves all of the extra energy in the batteries to use later. If the utility pays less for your solar power than you pay them for electricity, you save 30% more than if you sell your power.

What if the power goes out?
With standard solar, if the utility system shuts down, so does the solar. This is for safety.
Mi-Grid can operate independent from the utility. During the day, a Mi-Grid system is disconnected from the utility. You won’t even notice an outage.

At night, Mi-Grid connects to utility power if the batteries are low. If the utility goes out, it automatically switches to the batteries. With the batteries low and the utility out, the generator automatically starts.
The Generator supplies power and recharges the batteries. Once the batteries are charged, the generator shuts off. On a stormy day, with the utility out and no sun, the generator may cycle several times.

How is Mi-Grid compared to a generator?
Without solar, Mi-Grid can reduce fuel consumption by 50%. It does this by running the Generator at a higher load for a shorter time. Add in the solar panels and Mi-Grid may use no fuel at all. It averages out to a 90% reduction in fuel and run time. Plus, backup generators come on after the power goes out.
Mi-Grid keeps the power on. Never lose power.

Mobile Energy Independence – Never Lose Power, Save More with Solar

Mobile Energy Independence – Never Lose Power, Save More with Solar

Hybrid Energy System
Energy management system combines power from multiple sources including: Solar, Utility Power, Energy Storage and Auto-starting Generator.

Power RVs, Food Trucks, Mobile Businesses and More
From 2kW to 8kW continuous pow-er, surge power for starting Air Conditioners, pumps and motors, 6kW to 16kW.

Solar Powered
50-80% power from Sun – even works on cloudy days. Solar and batteries supply power during the day. Switches to generator power once batteries are depleted. Generator runs 1-3 hours/day supplying power while recharging batteries, then shuts down, reducing fuel and noise. Solar panels charge even while driving.

Large Storage system
Inverter/Batteries can operate standalone for many hours, including air conditioning!

Fully Integrated system
Includes Energy Management system, Inverters, Charge Controllers, Transfer switches, Energy Storage, Outlets and Generator – Pre-packaged and tested assuring high quality.

Easy Installation
Solar panels and installation kits Available. Flexible Flat Panels kits for easy roof mounting.

Utility Recharge
Recharge batteries from Utility, when available.

Never Lose power
Seamless transition between sources. Power never goes out.

Saves Fuel
Generator fills in when renewable and utility sources are not sufficient. Operates at high power, running everything & recharging batteries. Shuts down when batteries full. Up to 90% savings versus traditional generators.

Reduced Maintenance
Mi-Grid generators typically run only a few of hours per day. Time before maintenance is significantly increased. Traditional mobile generators run all day. Inexpensive generators are loud and require constant maintenance, typically lasting only a season or two.

Freedom
Independence. Go anywhere the road takes you. Always have pow-er. Save money. Less noise. Reduce or eliminate your carbon footprint.

Mi Grid Mobile Models and PricesRemote panel and remote generator start switch included. Generator delete option requires a self supplied remote start genera-tor, for example an ONAN. Mi-Grid 500 High power includes 220VAC.

Up to 4 flexible solar kits can be connected to a Mi-Grid.

Choose Predesigned configurations or customize for your application.

Options include NEMA4 or NEMA4X enclosures, special long life batteries, Wall Mounting, Air Conditioning and motor soft starters.

 

 

Off-Grid Energy Independence – Never Lose Power, Save More with Solar

Off-Grid Energy Independence – Never Lose Power, Save More with Solar

Hybrid Energy System
Energy management system combines power from multiple sources including: Solar, Utility Power, Energy Storage and Auto-starting Generator.

Remote Power for Power Anywhere
From 2kW to 80kW continuous power, surge power for starting Air Conditioners, pumps and motors, 6kW to 160kW.

Solar Powered
Power from Sun – even works on cloudy days. Solar and batteries supply power during the day. Switches to generator power if batteries are depleted. In times of high power demand or low sun-light, Generator supplements pow-er while recharging batteries, then shuts down, reducing fuel and noise.

Large Storage system
Inverter/Batteries can operate standalone for many hours, including air conditioning! In times with-out fuel, system can provide critical power.

Fully Integrated system
Includes Energy Management system, Inverters, Charge Controllers, Transfer switches, Energy Storage, Outlets and Generator – Pre-packaged and tested assuring high quality.

Easy Installation
Pre-packaged primary systems minimizes electrical installation costs. Solar panels and mounting hardware Available. Multiple de-signs for your unique needs. 130- 150 mph designs available.

Never Lose power
Seamless transition between sources. Power never goes out. Like a computer UPS!

Saves Fuel
Generator fills in when renewable and utility sources are not available. Operates at high power, running everything & recharging batteries. Shuts down when batteries full. Up to 90% savings versus traditional generators. Pays for itself in as little as 6 Months.

Reduced Maintenance
Generator only runs when needed. Mi-Grid generators run at most a few of hours per day. Time before maintenance is significantly in-creased. Traditional generators run 24/7. With run time reduced by run 90%

Not just for Off-Shore
But Mi-Grid is not just for off-grid. Mi-Grid works great in high cost power areas, or areas with unreliable or intermittent power. Typical Electrical savings are 30% over standard grid-tied solar while providing multi-source power reliability and backup. With Mi-Grid you never lose power.