Imagine a major household appliance that, instead of consuming electricity, generates and feeds renewable solar electricity to the house, EV and grid using a 240V plug-in connection through a receptacle.
GismoPower® has developed the MEGA®, a Mobile Electricity Generating Appliance, a portable solar charging station on removable wheels integrating a high-power bifacial PV system and a powerful Class 2 EV-Charger, which also generates electricity for adjacent buildings and the connected grid. The MEGA fits neither the rooftop nor the ground-mounted solar PV categories.
This photovoltaic technology targets non-millionaire “energy prosumers,” including renters, utilizing previously untapped surface areas for solar power generation: Commercial, residential, and public driveways and parking areas. Our market focuses on small businesses, modest family homes and everyone else who needs to move.
Mobile MEGA appliances enable moderate income Americans to adopt renewable energy generation in their parking lots and driveways for a fraction of the cost of comparable systems where neither rooftop nor ground-mounted solar work. MEGA’s plug-in connection to the electric grid simplifies solar power integration, eliminating complex wiring and permitting processes and functions like an appliance—quick to install, expandable, and cost-effective. Unlike traditional solar systems, MEGA is engineered for quick deployment, extreme durability, and scalability, making it ideal for various applications.
Key Benefits:
MEGA includes a mobile racking system, PV modules, and UL-1741 compliant electronics conforming to the latest safety standards. This ensures high performance and compliance with distributed generation requirements.
Unlike conventional rooftop systems, MEGA allows easy access to PV modules, electronics, and wiring for cleaning, troubleshooting, and upgrades. This simplifies maintenance and reduces long-term costs.
Link to UL-3700
Underwriters Laboratory published Version 2 of their Outline of Investigation "UL-3700 INTERACTIVE PLUG-IN PV (PIPV) EQUIPMENT AND SYSTEMS" on October 1st 2026. This OOI is not an ANSI approved consensus Standard yet with public input and much improvement needed.
A block diagram for the MEGA can be found on page 43.
Link to full article
Innovation doesn’t always have to mean “deep tech” and new materials. In the United States, Gismo Power is working on a portable, plug-in approach to reduce the cost of PV carports and has found that regulation is its biggest obstacle. PV MAGAZINE spoke with Gismo Power CEO Antonia Ginsberg-Klemmt about its approach and market potential.
Using Laguna Hills (SCE territory, Orange County, CA) as the baseline: a single MEGA, mounted flat with bifacial modules, generates approximately 10,000 kWh per year (PVWatts, 6.39 kW DC, 14 percent system losses). The average California household consumes about 8,100 kWh annually. One unit therefore covers 100 percent of a typical household's electricity, with roughly 1,900 kWh left over for an electric vehicle.
What that electricity is worth depends on when you use it, and this is where honesty matters. SCE's residential time-of-use rate (TOU-D-5-8PM) charged $0.34 per kWh off-peak and $0.74 per kWh on-peak, 5 p.m. to 8 p.m. on summer weekdays, on a September 2026 bill. Winter rates run about $0.38 off-peak and $0.60 in the same evening window. Solar alone cannot touch that evening peak; generation ends before it begins. This is exactly why the MEGA ships with storage.
The MEGA's 16 kWh battery operates in peak-shave mode: it charges at midday, discharges into the 5 to 8 p.m. window first, then carries the household through the night, while holding 10 percent in reserve for outages. The system is configured for zero export, so nothing is sold back to the grid and NEM 3.0 export pricing never enters the calculation. No federal tax credit is assumed, since the residential 25D credit expired after 2025.
Scenario 1: single MEGA, 10,000 kWh household with an EV. That dispatch displaces about $3,840 per year in SCE charges: roughly $1,700 from daytime self-consumption, $1,300 from the evening peak, and $840 overnight. At a system price of $23,925, the simple payback is 6 to 7 years. For a 20,000 kWh all-electric household, the same single unit saves about $4,480 per year and pays back in 5.3 years, because more of the battery's output lands in the expensive evening window. Over the system's 25-year life, that works out to under $0.10 per kWh for electricity SCE currently sells for $0.34 to $0.74.
Scenario 2: dual-rack MEGA with 32 kWh of storage, 20,000 kWh all-electric household with an EV. A dual 12.8 kW MEGA generates about 20,000 kWh per year in Laguna Woods, matching the household's annual load. With two 16 kWh battery packs, the system serves 10,000 kWh of daytime load directly (including midday EV charging), shifts 4,000 kWh into the 5 to 8 p.m. peak, and carries another 4,500 kWh through the night. Only about 500 kWh per year goes unused. In total the household draws 93 percent of its electricity from its own carport, and the dispatch displaces about $7,680 per year in SCE charges: roughly $3,390 from daytime self-consumption, $2,610 from the evening peak, and $1,680 overnight. At a system price of $37,290, the simple payback is 4.9 years, and the 25-year cost of the electricity works out to about $0.075 per kWh. This configuration also avoids about 4.4 metric tons of CO2e per year on the California grid, or over 7 metric tons against the U.S. average.
The time-of-use rate matters in both scenarios. On a flat $0.34 per kWh tariff, the single MEGA would save about $3,150 to $3,240 per year and pay back in roughly 7.5 years, and the dual-rack system would save about $6,300 per year and pay back in 5.9 years. SCE's time-of-use pricing improves the return by 20 to 40 percent, entirely because the battery shifts midday generation into the 5 to 8 p.m. peak.
The EV advantage: the roughly 1,900 kWh a single MEGA produces beyond typical household use converts to 7,600 to 11,400 miles of driving at typical EV efficiency of 4 to 6 miles per kWh. For a household transitioning to electric vehicles, that is free driving on sun-generated electricity, charged at midday when the rate is lowest and the panels are producing. In the dual-rack scenario, the EV's charging is already inside the 20,000 kWh load and is served almost entirely from the carport.
The carbon impact: displacing California grid electricity at roughly 0.24 kg CO2e per kWh, a single MEGA avoids about 2.4 metric tons of CO2e per year (nearly 4 metric tons against the higher U.S. average grid). Because the system generates more clean electricity than the household consumes, it drives the household's electricity-related carbon footprint (about 1.9 metric tons per year on the California grid) net-negative, displacing more grid emissions than the household creates.
Electricity operates according to fundamental physical laws discovered by Ohm, Maxwell, and Kirchhoff. These principles, defined by mathematics, inherently support distributed electricity generation and dictate how energy flows through electrical systems—independent of any human oversight or corporate committee approvals
When an EV charges while a solar system generates electricity behind the same meter, the locally produced electricity directly supplies the EV battery first. Surplus energy powers the home, and any further surplus is fed into the grid. If solar generation is insufficient, the storage battery or the grid provides the shortfall.
With increasing EV adoption, grid demand will rise. However, GismoPower’s MEGAs—Mobile Electric Generating Appliances—enable direct solar-to-EV charging, reducing reliance on grid-supplied electricity and minimizing infrastructure strain.
By integrating smart EV charging with optimized solar generation timing, MEGA technology lowers peak loads and reduces the need for expensive grid upgrades.
A strong MEGA infrastructure, combined with Vehicle-to-Grid (V2G) bi-directional chargers, further stabilizes the grid. These battery-connected appliances act as distributed energy assets, decreasing dependence on fossil fuel-powered peaker plants. MEGA racks, paired with EV batteries, also provide off-grid emergency backup power, reducing the need for dedicated home battery systems.
Beyond grid benefits, MEGAs provide environmental advantages by shading pavement and parked cars, reducing heat island effects and improving air quality. GismoPower’s solar deployment technology turns driveways into decentralized power stations, empowering EV owners to be active participants in the clean energy revolution.
This mobile racking system will open the solar PV market to renters and people on the move. No dedicated single-use real estate area is needed for the MEGA. Fitting in neither rooftop nor ground-mount category, MEGA racks can be wheeled into garages and barns during adverse weather conditions.
Solar installation companies can increase productivity by deploying several standardized GismoPower MEGA systems per day via flatbed trailer, instead of getting caught in unexpected complications during tricky customized rooftop installations which sometimes require dangerous, acrobatic efforts at elevated heights.
The secret sauce to GismoPower is its Solar On Wheels®. Heavy-duty caster wheels allow the individual racks to be elevated and wheeled around without major effort. Bad weather ahead? Simply lower the side panels and wheel it into the garage. The car still fits underneath.
The metal racks can optionally be anchored and bolted on asphalt or concrete surfaces. The solar panels pivot up when deployed, and are folded down when the units are wheeled into a garage or shelter. Florida is notorious for its hurricanes, but look at what just happened with hurricanes in New York & Connecticut and other high wind events in the rest of the nation.
GismoPower will give its owners a chance to “unplug and store” beforehand, instead of “install and pray” during storm events.
Tesla Roofs, which sell for $63K-$96K, certainly won’t get Power to the People. But even a standard rooftop solar system can be more expensive than a comparable MEGA system; When combined with backup batteries to prevent power outages, EV-charger and a canopy or carport, the cost advantage becomes significant.
Rooftop Solar Cost:
The average cost to install a 6.5 kW premium-quality residential rooftop solar system in the United States varies based on factors such as equipment selection, installation complexity, and geographic location. Premium systems, which utilize high-efficiency panels and top-tier inverters, generally cost more than standard installations. As of 2026, the 30% federal residential solar tax credit (Section 25D) has expired, so buyers no longer receive a federal offset, and net costs now equal gross costs for most homeowners.
Level II EV-Charger Cost (2026): Hardware $200 - $900; installation $400 - $1,500 (labor and permit); typical all-in $800 - $2,000. The Section 30C credit (30%, up to $1,000) applies only in eligible census tracts and expires June 30, 2026. Qmerit
Carport Cost:
The average cost to install a residential carport in the United States ranges between $3,089 and $9,450, with a national average of approximately $6,238. Angi
Factors Influencing Carport Installation Costs:
Size and Capacity:
Material Selection:
Construction Type:
Additional Features:
MEGA® :
Levelized Cost of Energy (LCOE) over a period of 25 years
Levelized Cost of Energy (LCOE) Online Calculator
NLR (NREL) has developed an online tool that enables users to compare electricity costs across various generation sources using a unique algorithm.
FOLLOW THIS LINK TO THE CONFERENCE PRESENTATION
Click here to download the 2025 Plug-In Solar Conference Report, featuring the Joint Declaration.
Seven MEGA pilot sites are currently operating in the United States to provide renewable electricity and performance statistics:
PILOT SITE #0 (Prototype - 20X 375W) Private Residence - Sarasota/FL
PILOT SITE #1 (MEGA - 9X460W) FREEDM SYSTEMS CENTER - Raleigh/NC
PILOT SITE #3 (MEGA - 9X490W) Private Residence - Walnut Creek/CA
PILOT SITE #4 (MEGA - 9X540W) SLAC National Accelerator Laboratory - Palo Alto/CA
PILOT SITE #5 (MEGA - 9X460W) Private Residence - Sarasota/FL (Off-grid, No online monitoring)
PILOT SITE #6 (MEGA - 9X540W) Private Residence - Las Vegas/NV
PILOT SITE #7 (MEGA - 9X540W) Community Center - Pine Ridge/SD
PILOT SITE #8 (MEGA - 8x705W) Private Residence - Pine Ridge/SD
In October 2024 GismoPower received the first Utility approved Plug-In Solar interconnect agreement in the United States.
The MEGA system located in South Dakota has received official approval by the Department of Energy (DOE) and can be found on their official GIS website for EV-Chargers.
Following the grid interconnection approval by Lacreek Electric in South Dakota, NV-Energy followed suit in December 2024 by granting their Permission to Operate (PTO) in Las Vegas, Nevada.
NV-Energy's grid interconnection approval encompassed an electrical plan review, a physical safety inspection, the installation of a bi-directional meter, and enrollment in their net metering program.
In an historic first, South Dakota has become the national vanguard of a new solar frontier: high-power, Plug-In Solar appliances.
The MEGA®, enables self-consumption and generation of renewable electricity at distributed sites.
Every kilowatt hour generated and consumed behind the electric meter at the same location does not need to be transported through the electric grid. Increasing self-consumption at distributed locations can effectively reduce the need to expand electric grid infrastructure. This is especially valuable for the ongoing transition to electric vehicles, which will significantly increase our reliance on distributed electricity.
Follow the link to NCSU's Grid Impact Analysis research report.
SLAC National Accelerator Laboratory validated NCSU's findings and included California specific areas with high EV acceptance rates in their scope of work.
● Most solar PV installers do not serve renters.
● Community Solar with remote net-metering is against the applicable laws in Florida which exclusively favor the utility corporations.
● The sole solar choice for most renters in Florida is to participate in a utility owned solar project.
● If renters in Florida would be able to offset their real estate costs and the installation costs for their solar PV systems through guaranteed revenue, they would become owners and not remain renters.
Electric Utility Corporations like Florida Power & Light are legally entitled to offset real estate costs and all operating expenses for their utility scale solar farms through capacity charges with guaranteed revenue, while residential PV system operators do not benefit from such regulatory entitlements.
Residential PV systems therefore play an irrelevant, almost negligible role in solar power generation. The actual share of Florida's overall solar electricity generation capability reached 6.99% while residential and commercial solar PV stagnated around 1% in Q1 2024.
Florida Power & Light enforces unfavorable policies which limit privately owned solar system installations to 115% of PAST usage and requires an extraneous, unjustified liability insurance for all PV systems above 10KW.
In 2019, the Gismo team made an attempt to fix this issue by filing a petition with the Florida Public Service Commission against Florida Power and Light (FPL) who disincentivises powerful residential solar systems and appealed the FPSC's denial of the petition.
- May 13th 2020 - SC19-1873 Initial Brief of Merits
- July 4th 2020 - SC19-1873 Reply Brief
In 2020, we intervened before the Federal Energy Regulatory Commission (FERC) in support of net-metering and just monetary compensation for generated solar electricity.
Florida Statute 163.04
Energy devices based on renewable resources.
F.S. 163.04 (2) A deed restriction, covenant, declaration, or similar binding agreement may not prohibit or have the effect of prohibiting solar collectors, clotheslines, or other energy devices based on renewable resources from being installed on buildings erected on the lots or parcels covered by the deed restriction, covenant, declaration, or binding agreement. A property owner may not be denied permission to install solar collectors or other energy devices by any entity granted the power or right in any deed restriction, covenant, declaration, or similar binding agreement to approve, forbid, control, or direct alteration of property with respect to residential dwellings and within the boundaries of a condominium unit. [..]
For well over a decade, the Sarasota County Department of Planning & Development Services has been embroiled in corruption and misconduct scandals, involving former Building Officials Kathy Croteau and Greg Yantorno as well as a former code enforcement officer.
Disregarding the state-wide FSEC 203-17 certification by the Florida Solar Energy Center , the Sarasota County Building Official withheld our solar permit application.
- Nov 12th 2021 Electrical Review: APPROVED
- Jan 26th 2022 Zoning Review: NOT REQUIRED
- Jan 25th 2022 Building Review: FAILED
The Sarasota County Building Official neither approved nor denied the building permit application:
- STEVE BELL: DECISION February 9th 2022
Pursuant to Florida Land Use and Environmental Dispute Resolution Act (“FLUEDRA”):
- Appeal against withholding the Solar Permit
- Sarasota County responds to the Appeal
Building Code Board of Adjustments upholds the decision:
- Theresa Toole WRITTEN ORDER Building Code Board of Adjustments & Appeals
- Special Magistrate recommends denial of Solar Permit
The article titled "Barriers to Balcony Solar and Plug-In Distributed Energy Resources in the United States," published in Energies (Volume 18, Issue 8), explores the potential of plug-in distributed energy resources (DERs) like balcony solar systems in the U.S. energy landscape. These systems, which connect to homes via standard AC outlets, offer a portable and cost-effective alternative to traditional rooftop solar installations, particularly benefiting renters and those with limited access to conventional solar options.
Despite their success in Europe, the adoption of plug-in DERs in the U.S. faces several challenges. The authors identify technical issues such as touch safety concerns, breaker masking, and the need for bidirectional ground-fault circuit interrupters. Additionally, regulatory hurdles stemming from Underwriters Laboratories (UL) standards and the National Electrical Code (NEC) complicate their integration into the existing energy infrastructure. Utility perspectives and interconnection challenges further impede widespread deployment.
By addressing these barriers, the article suggests that plug-in DERs could play a significant role in democratizing access to renewable energy and enhancing grid resilience. The full article provides an in-depth analysis of these issues and potential pathways for overcoming them.
A TALE OF TWO CONTINENTS
North American Clean Energy Magazine
September/October 2024
GismoPower now popular in China
【图】随时充电 美学生发明便携式太阳能车棚_汽车之家
