Focus area: Demand response

Altergy Freedom Power Platform

Project URL:

Solution/product description

Objective is to eliminate the need for HVAC systems on OSP cabinets, thus reducing utility peak demand charges and reducing overall electricity usage

How does your project address / improve the focus area (Monitoring and Measurement, Demand Response, Supply and Control)?

• HVAC costs could amount to more than 40 % of MSO electricity costs
• The biggest enemy of VRLA batteries is temperature sensitivity. MSOs deploy HVAC systems on OSP cabinets in an effort to keep the VRLA batteries at their optimum operating temperature of 77 degrees F. This is the primary reason MSO install HVAC systems (that hang on the equipment cabinet; see fiber cabinet photo below with HVAC system.
• By eliminating VRLA batteries and replacing with fuel cell technology, which have a wide temperature operating range (-40 C to +50 C), MSOs can reduce their peak demand charges on the collective hundreds of thousands of OSP cabinets
• Reduce peak demand charges and overall electricity usage.
o AC systems have a high starting current – known as locked rotor amps, and lower operating current, known as running current – the high current draw when starting results in higher power demand from the utility, as the utility feeders must be capable of providing the peak power demands.
• Reduce capital expenditures (no longer require HVAC units) and reduce overall annual PM costs for the HVAC units
• Avoid battery replacement cycles every 5 years or so, along with battery recycling costs

What was your inspiration for your project?

The current backup power solutions used by the cable and MSO market are woefully inadequate for growing data demands. Customers outlined the need to eliminate dirty diesel generators due to the increased regulations and permitting required to deploy. Customers also expressed an interest in longer runtimes than batteries can support due to the more critical nature of their customer base using not just cable tv services, but VOIP.

What is the single most exciting thing about your project?

Our solution can retrofit into existing cable cabinets and be deployed in under an hour!

Why did you decide to take part in the Adaptive Power Challenge?

We are in a position to support a larger scale roll-out, and feel that large cable operators like Comcast and Liberty Global would be perfect partners to showcase this innovative technology.