Lower Energy Bills Without Solar!

Alternative to Solar

Solar vs. DAC Box: The Smart Comparison

• Solar panels are a significant investment — typically $20,000 to $40,000 or more after installation

• Solar ROI can take 8 to 12 years to fully realize

• The DAC Box delivers comparable bill reductions at a fraction of the cost

• No roof work required

• No permits required

• No weather dependency

• No waiting a decade to break even

• Installs in a single day

• Starts saving money immediately

• Keeps saving for the life of your home

• Works whether you already have solar or have never considered it

Bottom line:

• For homeowners wanting real, measurable bill reductions without a full solar price tag — the DAC is the smartest first step

• For existing solar customers — the DAC is the upgrade that finally delivers the savings solar promised but couldn't finish alone

FAQs

What is a demand charge on my electric bill?

A demand charge is a separate fee your utility adds to your bill based on the single highest 15-minute burst of electricity you draw in an entire month — not how much you use overall. One moment where your AC, water heater, and dryer all run at once can set that charge for the whole billing cycle.

How does the Demand Automation Computer reduce my electric bill?

The Interactive Energy Systems Demand Automation Computer installs at your electrical panel and monitors your home's highest-draw appliances in real time. It automatically sequences your loads — AC, water heater, dryer, pool pump, EV charger — so they never overlap during peak hours, eliminating the demand spikes your utility charges you for.

Do APS, SRP, and TEP customers pay demand charges?

Yes. Arizona homeowners on APS Time-of-Use, SRP Demand Price Plan, and TEP Demand Time-of-Use rate plans all pay a demand charge component on top of their regular energy usage — and most don't realize how much it's inflating their monthly bill.

Will the DAC affect my comfort or daily routine?

No. The DAC pre-cools your home before peak windows begin, staggers appliance cycles invisibly, and shifts flexible loads to off-peak hours. Your home stays at the temperature you set. Your water stays hot. Your daily routine doesn't change at all.

What is a TOU-D rate plan and how does it affect my bill?

A Time-of-Use Demand (TOU-D) rate plan charges you two ways: for the total electricity you consume (kWh) and for the highest rate at which you consume it (kW) during peak hours. The demand component alone can represent 30 to 50 percent of your total monthly bill.

How much can Arizona homeowners save with the Demand Automation Computer?

Arizona homeowners on APS, SRP, and TEP are consistently cutting their total electric bills by 30 to 60 percent after installing the DAC — with the most dramatic savings occurring during peak summer months when demand charges are highest.

Is the Demand Automation Computer a good alternative to solar panels?

Yes — and at a fraction of the cost. While a solar installation typically runs $20,000 to $40,000 with an 12-15 year ROI, the DAC delivers comparable bill reductions with an ROI most Arizona homeowners achieve in one to five years. No roof work, no permits, no weather dependency.

How long does it take to install the Demand Automation Computer?

Absolutely. Solar reduces your energy usage but does nothing to eliminate your demand charge — the spike your utility records when your appliances overlap. The DAC handles exactly that, making it the perfect complement to an existing solar system and finally delivering the full savings solar promised.

Does the DAC work if I already have solar panels?

A certified electrician installs the DAC at your electrical panel in a single day — typically 4 to 6 hours. From that point forward it runs automatically, 24 hours a day, with no input required from you.

Is the Demand Automation Computer proven technology?

Yes. The DAC was engineered in 1978, is manufactured in the USA, UL certified, and has been installed in more than 35,000 homes nationwide — including 25,000 in Arizona alone. It carries a 30-year warranty and a historical failure rate of less than 1 percent.

What States Have Utilities with Demand Plans?

Arizona, North Carolina, South Carolina, Colorado, Virginia