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How to buy

A complete system, quoted for your house

A residential Energy Sentry install is the 9388A Demand Automation Computer, current transformers, relays, a load survey, the electrical work, commissioning, and the 3-year warranty — professionally installed. Every home is a little different, so you get a written quote after we see your panel. No sticker price, no cart, no surprise invoice later.

Start with a free savings estimate. If your utility has a demand rate and your house is a fit, we quote from there.

How to buy

Why there is no "buy now" button on this page

We could take your credit card in ninety seconds. It would not get you a working system.

Current transformers have to be installed on your service conductors ahead of the main breaker, which is licensed electrician work everywhere we operate. Before that, somebody has to walk your panel and decide which loads go under control and in what priority order, because a system controlling the wrong loads saves nothing. And in most cases the savings require moving to your utility's demand rate plan, which is a change you make with the utility, not with us. Shipping you a box skips all three.

So instead of a cart, this page tells you what is included, what can move a quote, and what happens after you raise your hand.

Standard install

What a standard residential install includes

9388A demand automation computer
Split single-phase 120/240V up to 40 kW, 8 or 16 control points.
Current transformers
Sized to your service and installed on the incoming conductors.
Power relays & low-voltage relays
For your controlled loads, configured during commissioning.
Site load survey
An installer inventories your major loads, decides which go under control, and sets the priority order. Water heaters get held first. A dryer someone just started is the last thing touched.
Licensed electrician installation
Panel work, mounting, and wiring to controlled loads.
Commissioning & walkthrough
Demand limit configuration, load naming, verification that every control point switches, and a walkthrough with you.
Utility rate plan guidance
We identify the right demand rate for your usage and tell you exactly what to ask the utility for.
3-year warranty
On the controller, included with every standard residential installation.
Your home

What can change a quote

Most homes are a standard install. Four things can change the quote: how far your loads sit from the panel, since distant loads are controlled by power line carrier instead of hardwired relays; how many loads you want controlled, which can mean relays beyond the two that ship on the board; panel condition, since an old or full panel sometimes needs work first; and local permitting and inspection fees, which are passed through at cost. Unusual equipment such as multiple heat pumps with staged backup heat or a large EV charging setup can also change the list.

Anything that moves the quote is written down before work begins. No change orders discovered on invoice day.

Payment options

$0 down, free installation, only pay if you save

Qualified customers may be able to install with no money down. Installation may be included at no separate charge, with payments structured against verified savings on your utility bill. Availability depends on your utility, your rate plan, and credit approval.

Financing

Financing is available through our lending partner for qualified buyers. Terms depend on credit approval and your state. Your dealer will walk you through the options during the estimate, and you will see the full terms before you sign anything.

Before you buy

Is your home even a candidate?

Two things have to be true.

Your utility has to offer a demand rate. Not every utility does, and a few have discontinued theirs. If yours has not got one, a demand controller cannot save you money, and we will tell you that on the first call rather than the third.

You need loads worth controlling. Central air conditioning, electric water heating, a heat pump with backup strip heat, an EV charger, an electric dryer, a pool pump. An all-gas home with one small AC unit is usually not a fit.

Want a first read before you talk to anyone? Send us your bill or use the savings calculator on the residential page.

What happens next

What happens after you submit

  1. Someone from Energy Sentry or a certified local dealer contacts you.
  2. We check your utility and rate plan before anyone drives out. If no demand rate is available to you, the conversation ends there and it costs you nothing.
  3. Free in-home estimate. A certified installer walks your panel and confirms what the install requires.
  4. Written quote. Firm, itemized, including anything that deviates from standard.
  5. Installation. Most residential installs are under an hour of panel work plus commissioning.
  6. Rate plan switch. The savings do not start until you are on the demand rate, and we tell you exactly what to ask for.
Dealer network

Buying through a dealer

Many installations are handled by certified Energy Sentry dealers. Dealers are trained on installation, commissioning, and configuration, and they carry the same 3-year warranty. If you are an electrical contractor and want to sell and install Energy Sentry, talk to us about becoming a dealer.

Get a free estimate

Tell us where you are and what utility you have. We will confirm whether a demand rate is available to you and set up a free in-home estimate. No deposit, no commitment.

Call (888) 461-9336

We would rather tell you no on the phone than sell you something that will not work · Monday–Friday, 8:00 AM–5:00 PM Arizona time

Get your free
savings estimate

Answer a few quick questions — takes about 60 seconds.