Residential Power

The growing demand for clean energy and the increasing frequency of grid outages have driven a surge in interest in residential battery energy storage systems (BESS). Homeowners, multifamily housing developers, solar installers, and utilities are all recognizing the critical role that energy storage plays in maximizing the benefits of solar power, providing reliable backup power during outages, and optimizing energy costs. Whether you’re looking to make your home more energy-independent, lower utility bills, or enhance property value, residential battery storage is a key solution.

Alsym Green offers an innovative, non-flammable battery energy storage system designed for residential use, providing homeowners and developers with a safer, more reliable, and cost-effective alternative to lithium-ion systems. With its focus on fire safety, long-duration backup power, and financial savings through energy management, Alsym Green is perfectly suited for residential BESS applications. Whether in single-family homes or large multifamily complexes, Alsym Green enables a cleaner, more resilient energy future.

Enhanced safety

Safety is a top priority when installing battery energy storage systems in residential settings, particularly in densely populated urban areas and multifamily housing complexes. Traditional lithium-ion batteries, commonly used in residential BESS, come with inherent fire risks due to the potential for thermal runaway, where overheating can lead to fires or explosions. In a home setting, this risk is especially concerning, as it can put residents, property, and neighboring homes in danger.

Alsym Green eliminates these risks by using inherently non-flammable materials that remove the possibility of thermal runaway. This makes it a safer option for residential energy storage, giving homeowners peace of mind knowing that their BESS will not pose a fire hazard. For multifamily housing developers and property managers, choosing Alsym Green means fewer fire safety concerns, smoother permitting, and lower insurance costs. Alsym Green’s wide operating temperature range ensures that it can function safely and reliably in a variety of residential environments, from homes in hot climates to those in colder regions.

Alsym Green’s design meets strict safety and environmental standards, making it easier to comply with local building codes and fire safety regulations. This is particularly beneficial for residential BESS OEMs and installers, as it reduces the complexity and cost of installations in both single-family and multifamily settings.

Backup power

Power outages are becoming more frequent due to extreme weather events, grid instability, and increased energy demand. For homeowners, the loss of power can disrupt daily life, cause financial losses, and affect resident health during prolonged outages. In multifamily housing, a power outage can affect dozens or even hundreds of residents, creating significant disruptions.

Alsym Green provides reliable backup power during grid outages, ensuring that homes remain powered when the grid goes down. With its wide-duration energy storage capabilities—offering discharge times from 2 to 110 hours—Alsym Green can keep critical appliances, lighting, and HVAC systems running for extended periods, reducing the need for temporary solutions like fossil-fuel generators. This is especially important for households with vulnerable residents who rely on medical equipment, such as oxygen concentrators or CPAP machines, which require continuous power.

For homeowners with solar panels, Alsym Green enhances the value of their solar investment by storing excess solar energy during the day and providing backup power at night or during outages. In multifamily settings, Alsym Green can be integrated into centralized energy storage systems to provide backup power for common areas, elevators, and essential services, ensuring that residents remain comfortable and safe during outages.

Whether it’s a short-term grid disruption or a prolonged power outage due to severe weather, Alsym Green offers the reliability needed to keep homes functioning smoothly.

Financial benefits

One of the key financial benefits of residential battery storage is the ability to optimize energy costs through rate arbitrage and time-of-use (TOU) optimization. As utilities increasingly adopt TOU pricing structures, where electricity rates are higher during peak demand periods and lower during off-peak times, homeowners and multifamily developers are looking for ways to reduce their energy bills.

Alsym Green allows homeowners and property managers to store energy during off-peak periods when rates are low and use it during peak demand periods when rates are high, maximizing savings. This process, known as rate arbitrage, helps reduce electricity bills and optimize energy consumption without sacrificing comfort or convenience. For solar-equipped homes, Alsym Green can store excess solar energy generated during the day and use it at night or during periods of high energy demand, further increasing savings and reducing reliance on the grid.

For multifamily developers, this translates into significant operational cost savings by managing energy consumption across multiple units. Alsym Green’s ability to optimize TOU pricing can result in lower energy expenses for property managers and reduced utility costs for residents. With the ability to support software-configurable 2–110 hour discharge durations and 4-hour re-charge, Alsym Green is a single solution for use in short and long-duration storage applications. Project developers and community managers can use Alsym Green to take advantage of rate arbitrage opportunities during hour peak demand periods, as well as support intraday load shifting needs. Alsym Green can even be used to provide continuous power for up to 5 days to address outages brought on by inclement weather or extended periods of low renewable generation, and then charge to full capacity in only 4 hours when the outage is over. That’s a considerable advantage over other dedicated LDES solutions that only address a single use case.

Covering multiple durations is valuable, but also must be done efficiently. Some multi-day solutions have round-trip efficiencies below 50%, take up to 150 hours to charge, and lose 20% (or more) of that charge over 30 days. In comparison, Alsym Green can recharge to full capacity in under 4 hours and retain more than 90% of that charge over 30 days to ensure you’re ready for the next peak demand period or extended outage–even if it’s sitting idle. However, long-term outages aren’t regular occurrences, which means that a system designed to only address these extreme cases will not be used often. This can make it hard to build an economic business case. The way past this hurdle is to ensure your BESS has the flexibility satisfy several uses and to combine all of those benefits to justify the investment. This approach is called value stacking and is essential to creating the business cases for the investments the world needs now.

Additional benefits

  • Higher Property Values: Installing a reliable and safe BESS like Alsym Green can increase property values by making homes and multifamily buildings more energy-efficient and resilient. Prospective homeowners and tenants increasingly prioritize sustainability and energy independence, and having a BESS installed can be a major selling point. By offering reliable backup power and reduced energy costs, Alsym Green adds significant value to residential properties, attracting buyers and renters who are looking for long-term energy solutions.
  • Lower Insurance Rates: The enhanced safety features of Alsym Green, including its non-flammable design, can lead to lower insurance premiums for homeowners and property managers. Insurance companies often charge higher rates for homes and buildings equipped with lithium-ion batteries due to their fire risk. Alsym Green’s non-flammable technology reduces the likelihood of fire, making it a safer and more affordable option for both single-family and multifamily housing.
  • Support for Home Electrification and Reduced Fossil Fuel Dependence: As homes transition toward full electrification—moving away from fossil fuels for heating, cooking, and transportation—energy storage becomes an essential component of managing electricity consumption efficiently. Alsym Green supports home electrification by providing reliable, clean energy storage that reduces dependence on the grid and fossil fuels. This is especially beneficial for homes with electric vehicles (EVs), heat pumps, and electric stoves, as Alsym Green can store excess solar energy or low-cost off-peak electricity to power these devices, reducing overall carbon emissions and energy costs. In multifamily housing, Alsym Green can be integrated with solar and EV charging stations to support the electrification of the entire building, offering residents a more sustainable and cost-effective way to power their homes and vehicles. This aligns with growing trends toward sustainability and carbon reduction, helping developers meet regulatory requirements and appeal to eco-conscious buyers and renters.