48v.Tech - 4I Energy Independence - 48v DC for Homes, RV, & Marine +Solar Air Conditioning

48v DC Appliances, Smart LED Lighting, Outlets for Laptops & Tablets, TV, Pool, Irrigation, & Well Pumps, 

• New Construction 50% more efficient both On-Grid and Off-Grid
• Hurricane Resiliency, Remodeling, Solar Energy Independence with 10-year Pay Back
• Off-grid Homes or "grid-supplemented" in remote locations where a small, limited capaccity grid connection to To charge batteries on cloudy or high use days could save $100,000 or more! 
• Marine Yachts & RV - Intermittently off-grid or "grid-supplemented" with only a small standard 120v 15A I love you extension cord to help keep batteries charged

48 Volt DC appliances for every Modern use and need except microwave, air-fryer, coffee-maker, clothes washer, and clothes dryer will still require an inverter.

• 48v Lifepo4 Batteries designed exclusively by us for mounting high on the wall above potential floodwaters and keeping your valuable floor space available
• 48v 5-in-One Inverters - Pre-Wired DIY Friendly - 120v 3kw to 10kw or 120V/240V Split-Phase 12kw or 15kw with 200A pass-through for whole-home-backup = Solar charge controller, AC Grid battery charger, Transfer Switch, Smart Wi-fi Control Center, and Inverter
• 48V Ultra-High Efficiency Solar Water Heater with 240V AC hybrid option
• 48v Air-to-Water Heat Exchanger for Hydronic Heating and Air Conditioning, including pools and spa
• 48 Volt DC Hybrid Conversion for Existing AC Water Heaters
• 48v Induction Cooktop
• 12v-60v DC Smart Wi-fi LED Lighting with Alexa
• 12v-60v DC LED Fixtures for retrofitting existing AC circuits and fixtures with optional smart Wi-fi controls
• 48v Solar Pool, Irrigation,& Well Pumps

48v, 24v, or 12v Solar Air Conditioning - High Efficiency Mini Split

Access to affordable energy is the greatest historical differentiator in development between societies. Thomas Edison strongly argued that DC was a better solution inside the home which was absolutely correct. AC is better for distribution to the home. Many modern devices and appliances already run on AC converted to DC internally from LED bulbs to induction cooktops, inverter refrigerators and dryers.

Focus is not energy savings but FREEDOM from the electrical umbilical shore power  to enjoy the best places comfortably for Marine Vessels, Recreational Vehicles (RVs), a remote Cabin, or village in the developing world

All Heat Exchangers Fall into 3 Reversible Groups 

• Air-to-Air - commonly referred to as an "Air conditioner" 
• Water-to-Water - commonly referred to as a "Chiller"
• Water-to-Air - commonly referred to as an "Air handler" or "Geothermal" 

Open-loop Geothermal is to 2 wells or a pond or a canal. Closed-loop Geothermal is to pipes buried underground. Marine chiller or geothermal systems are the same thing simply one is buried, the other not. Many marine chiller and geothermal systems are two-stage combining one or more water-to-water with one or more water-to-air.

Energy can be Stored Chemically (Battery), Thermally, Kinetically, or Atomically

If we want cooling air conditioning at night powered by solar energy captured during the day we can

1. Store Solar DC in Big expensive DC batteries, then use a (hopefully DC) air-to-air heat exchanger powered by those batteries all night.
2. A Thermal Water Battery - A DC-Direct water chiller powered directly by DC solar panels during the day to cool the water in a large insulated tank buried in the ground, ideally under the center of our home. Then use a small battery to move cool water through, and spin a fan in, a water-to-air handler. This moves the heat from our bedroom into the cold water tank throughout the night. 

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A 48V DC System is Highly Recommended. However, we can also design and build the same for 24V DC if there is a compelling reason (rare). 12V DC is just too inefficient for anything bigger than a treehouse or small auto though of course 12v devices are supported.

Our design methodology always starts with sizing for 80% of days / conditions

1. BTUs of 32+ SEER High-Efficiency 48V DC Air Conditioning / Heating whether you implement it immediately or not
2. Total of all Loads.
1. Recommend Induction cooktops, Air-fryer Toaster Oven, and Microwave.
2. 48V DC Desalinator WaterMaker or freshwater Purification available and optionally use the solar array to collect rainwater
   • Propane is recommended for high energy, short-duration loads: Instant Hot Water Peter to never run out, Clothes Dryer, and portable storable cooktop and/or grill.
   • Prefer to avoid gas and do not need a clothes dryer? Then a Solar-direct Hot Water Heater is available requiring 1-3 extra panels.
3. Size of Lifepo4 Battery Bank
4. Size of Solar Array
5. Small, fully automatic 3 to 5 kw 48V DC Battery Charging Generator to supplement running only a few hours 10% to 20% of days.
6. Plugging-in can be done with any standard 120v 20a extension cord anywhere
7. available.

Mark has also built compact, indestructible, safe, and ultra-reliable LTO Batteries for infrequent, high-amp (>500a), short-duration, mission-critical loads such as engine starter, drive-by-wire joystick controls, windlass, thrusters, and hydraulic pumps.