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Battery

Battery Backup

Group of backup batteries

Why Battery Backup in Alaska?

RES offers many types of batteries for a wide range of applications, including lead-acid, absorbent glass mat, and lithium iron phosphate batteries. Batteries come in a large range of voltages, such as 2V, 4V, 6V, 12V, 24V, and 48V.

Applications include:
  • Remote power
  • UPS systems
  • Commercial and residential systems
  • Replacement batteries
  • Custom applications

Battery and Hybrid Generator Backup
RES designs backup power around the loads your operation cannot lose, the length of outage you need to ride through, and Alaska site conditions. Our team handles the energy audit, load calculations, system design, installation, commissioning, remote monitoring setup, and ongoing service, so one party is responsible for the complete system.

How RES Sizes a Commercial Backup System

  1. Energy audit and critical-load identification | We separate the loads that must stay on, such as refrigeration, servers, process equipment, and life-safety systems, from loads that can wait.
  2. Load calculations | We account for continuous demand and equipment startup loads, which often set inverter and generator requirements.
  3. Runtime target and generator integration | We agree on how long the facility must run through an outage and design battery storage, and generator integration where it fits, to meet that target.
  4. Site assessment, permitting, and utility coordination | We evaluate the installation location, access, and cold-weather conditions, and we handle permitting and utility coordination.
  5. Installation, commissioning, and support | We install and integrate the electrical system, commission it, set up remote monitoring, and provide ongoing service and support.

Who this is for

  • Businesses with refrigeration, servers, or production equipment that cannot tolerate interruption, including lodges, fishing and processing operations, and remote commercial sites.
  • Clinics, schools, and community facilities that need continuity for essential services.
  • Remote facilities where fuel logistics and service access shape the design.

What to bring to a project discussion

  • Outage history at the site, including how often and how long.
  • A list of critical equipment and its power requirements.
  • The runtime your operation needs.
  • Site access details and any existing generator or electrical setup.

FAQ

Questions about battery backup systems?
View Battery Backup FAQs

Featured Products

View our full catalog

Commercial

Backup power for businesses and operations

For commercial and institutional clients, battery systems help maintain operations during outages, reduce downtime, and protect critical infrastructure.

RES designs systems based on operational requirements, load profiles, and risk tolerance.

Explore Commercial Energy Systems

Testimonials

“Great people and great place to do business!”

– Richard de Leon

“I had my solar panels installed five years ago and there was a little bit of an issue with the electrical pipes moving around three days later they were out there and spent half a day upgrading and redoing the entire thing, I would give them an A+ for Service!”

– Todd Marcus

“Very knowledgeable and answered all my questions. Easy to work with, good communication. Installation was quick, not invasive and they walked me through it thoroughly.”

– Jamie Fredrickson

“Karl was a great help. He knows his stuff.”

– EH

“Replaced my Gateway in a timely and efficient manner.”

– Steve Lambert

“I called RES over Christmas break. I was at a remote/off grid cabin and my generator failed with temps reaching -32F. The Solar system I purchased from RES was working perfectly. But my back-up generator was not powering the cabin. I called KEVIN at RES. He spent nearly 40 minutes on the phone with me troubleshooting my issues. Kevin was patient and knowledgeable and got my system up and running. Customer service like this is hard to find! I will not buy any solar anywhere other than from RES. Kevin has my repeat business.”

– Glenn Nelson

“We purchased a solar system for our remote cabin. The sales process was educational, and fun. We got a system to meet our specific needs. I took the equipment home and set it up in my garage before taking it to our cabin, because I wanted to make sure i understood the system and set up process before getting far away and by myself. Karl provided me with friendly valuable tech support, and made sure I understood what I was doing. We purchased a high quality system, with local high quality support. Great value. I enthusiastically give a 5 stat rating.”

– Steve Conway

“RES provided excellent warranty work, and fixed our generator set up here on the Kenai Peninsula. These guys have a great team, including Kevin, Karl, and Scott. We invested a lot of money in our system, and it’s good to know we have great customer support behind it.”

– Allan B

“All the staff at RES Anchorage have been extremely helpful over several years of purchasing gear and hiring them for rural call-out jobs. They helped us select the correct equipment for our system and provided lots of tech support through the DIY jobs. Karl was even willing to help after business hours while I was troubleshooting in the dark. I feel like they genuinely want your off grid power system to work well, not just sell you the most expensive equipment. Thanks RES.”

– Jonathan Waitsfeld

“I had bought a used solar off grid system from a neighbor but it wasn’t complete. I informed them what I had and they told me what I would need to make it work and gave me more than one option. I was only sold what I needed and the price was right. It didn’t end there. Once I had everything hooked up, they helped me fine tune the system for the best performance. Any issues I had were resolved very quickly. I’m a very happy customer who will continue to do business with RES for many years to come. Thank you!”

– Robert Stockdale

Contact Us Today

Get a battery backup system designed for your needs

RES designs battery backup systems around your energy needs, essential loads, and operating conditions to provide reliable power when it matters most. We even provide custom training and educational classes.

Request your custom backup power plan

Battery Backup FAQ

    • RES works with residential, commercial, and remote applications and can evaluate storage, generator integration, electrical infrastructure, controls, and ongoing support as one system.

    • Alaska temperatures affect battery performance and charging, so siting, enclosures, and heating are part of the design.

    • Batteries carry loads instantly and silently, while a generator extends runtime when the outage outlasts stored energy.

    • Runtime depends on the critical-load profile, battery capacity, and whether a generator or solar recharges the system. RES designs to a runtime target agreed with the facility.

    • RES starts with an energy audit and load calculations to separate critical loads (refrigeration, servers, medical or process equipment, life-safety lighting) from loads that can wait. The critical-load list drives battery capacity, generator size, and the electrical integration design.

    • Yes. RES works with RV and mobile power applications. System design can account for available installation space, expected loads, battery capacity and available charging sources.

    • Most fully off-grid solar applications require some form of energy storage or another source of power for times when solar generation cannot meet the load. The appropriate battery capacity depends on energy use, desired autonomy, seasonal conditions and the overall system configuration.

    • Yes, systems are designed around the customer‚ critical loads and needs.

    • Battery backup is quieter, requires no fuel, and has lower maintenance.

    • Battery systems switch to backup power within milliseconds of an outage.