Solar generates the energy. Heat pumps put it to work. Backup keeps you running when the grid can't. The sequence — and how the pieces fit together — is the difference between a coherent home energy system and four separate sales over five years.
Walk into almost any solar conversation and someone will lead with panels. How many. What brand. How much per watt. The question they skip is the one that actually changes your home: what are you trying to do with the power?
Once you ask that, the conversation isn't really about panels anymore. It's about how the pieces of an electric home fit together, and the order you put them in. Solar by itself is fine. So is a heat pump by itself. The way most homeowners end up with both is what costs them money — each piece bought separately, from a different vendor, with no one keeping track of whether they still work as a system five years in.
This article walks through how we think about sequencing home electrification, why the order matters more right now than it did a decade ago, and how a homeowner in Massachusetts, New Hampshire, Vermont, or Maine should think about staging solar, storage, heat pumps, and EV charging across the next several years.
In this article
Sequencing means thinking about four pieces and what each one is actually for. They aren't four versions of the same purchase. They're four different jobs in one system.
These four pieces are related. Solar without anywhere to put the extra energy sells it cheap to the grid. A heat pump without solar runs on whatever the utility charges that month. Backup without electric loads sits mostly idle. An EV without a plan trips your panel board the first time someone runs the dishwasher while it's charging.
Sequencing — what goes in first, what goes in together, what gets pre-wired now for later — is how those four pieces stop being four separate sales and start being a coherent electric home.
Ten years ago, planning ahead for backup or self-generation was a hobby project. Today it's closer to infrastructure planning for your house. Two reasons.
The regional grid is under more strain than it used to be, and reliability isn't trending up. Both of those are broadly accepted at this point — the utilities themselves talk about it in their filings. The two largest electric utilities in our service area, National Grid and Eversource, carry over $84 billion in combined debt as of their most recent public filings. That isn't a flush-with-capital balance sheet. Major reliability upgrades take time and money that neither utility has in abundance, and meanwhile the load on the grid keeps going up as more of the region electrifies.
The cost of the fuels we used to depend on isn't predictable either. Heating oil, propane, natural gas, gasoline — every fuel a New England home has historically counted on is subject to events well outside your control. We're not making a fear case here; we're just acknowledging the macro picture is less stable than it was a decade ago, and homes that generate some of their own energy and keep some of it on-site have more options when something moves.
None of this means electrify everything tomorrow. It does mean: when you plan, plan for the next decade, not just for last year's electric bill.
For most homeowners, the four pieces show up over years, from different vendors, with nobody actively designing the sequence. A version we see often:
By the time all four pieces are in place, the solar is roughly half the size it should be for the new electric loads, and there's still no backup. So when the grid goes down in February, the house gets cold — a problem oil heat didn't have. Each piece works fine in isolation. None of them were ever designed to work together.
There's a simple reason solar-only companies skip the battery conversation: it makes the install harder. More equipment, more permits, more interconnection paperwork with the utility, and an ongoing relationship instead of a one-and-done sale. For a lot of the industry, the easier path is to put panels on the roof, collect the check, and move on to the next driveway.
That's not a knock on any individual installer — it's just a business model. Our model is different. We're trying to be the long-term partner for the electric infrastructure of your home, not the company that drops off panels and disappears. That's why we'll bring up the battery (or the generator), the heat pump, and the EV charger on a first call, even if you didn't ask about them. The full picture is what changes the plan.
The clearest way to see the difference is side by side. Same homeowner, same house, same eventual four pieces — one set of purchases over five years with nobody coordinating, the other planned together up front.
How a 5-year electrification rollout usually plays out vs. how it can
Each piece sold separately, no shared plan
One plan, one team, the pieces sized to fit each other
Same four pieces. Different sequencing. Different total cost. Different February.
Solar sized to your current electric bill is too small once a heat pump and an EV move in. Same for the panel board, the conduit runs, and any storage you add later. Sequencing means you size every piece for the loads that are coming, not just the ones that are there today.
When heat ran on oil and the car ran on gas, a grid outage was inconvenient — annoying, but not dangerous. When heating, hot water, and transportation all run on electricity, an outage starts to mean a cold house and a car you can't move. Backup — battery, generator, or both — becomes part of the system, not an upsell.
Stress on the regional grid is rising and reliability is falling — the utilities say so themselves in their filings. National Grid and Eversource carry over $84 billion in combined debt, which constrains how fast they can upgrade. Self-generation plus on-site backup is the hedge against a grid that isn't keeping up.
What we mean by "backup"
For a long time, "backup" in a home meant a generator — a unit that runs on gasoline, propane, or natural gas, kicks on when the grid goes down, and runs until the fuel runs out. A battery does the same job differently: silent, charges from your solar (or from cheap grid power), and refills itself instead of needing fuel deliveries. Both have their place. Which one fits your house depends on how long you need to run, what you're running, and whether part of the goal is getting off fuel altogether. We help you decide between them — we don't push either by default.
The right sequence depends on what you're starting with. Three common starting points — and the plan we'd usually write for each:
The easiest case. Nothing to undo. You can plan all four pieces on paper before anything is installed, and sequence them based on your budget and timeline. For many houses this means pairing solar and storage at install time and pre-wiring for the heat pump and EV charger that come later — but the specifics shift by house.
A plan we'd often write
Your solar was probably installed by a different company, before heat pumps and EVs were on your radar. The system likely doesn't include storage and probably wasn't sized for the loads you're now thinking about. The work is to audit what you have, add storage if backup or capacity is the goal, and plan the rest of the electrification around what the existing solar can actually carry — or expand the solar where it makes sense.
A plan we'd often write
The best possible moment to plan a fully sequenced system. Wiring, panel boards, conduit runs, and the location of the equipment can all be designed in. Skipping this is the most expensive mistake we see — adding the same pieces after the walls close up costs two to three times more.
A plan we'd often write
You don't need to commit to anything to start thinking about a sequence for your house. Three ways to do it on your own — or skip them and just talk to us. There's no order, and no requirement that you run anything first.
Common questions
Five short answers to the questions this article tends to raise.
Required, no. But the more of your home that runs on electricity — heat, hot water, transportation — the more useful backup becomes. A battery (or a generator) is what keeps you running when the grid can't. Think of it less as an upsell and more as a piece of infrastructure you can add today, in a year, or in five years, depending on your budget and how fast you're electrifying.
Not by itself. Grid-tied solar inverters are required to shut off when the grid is out so utility crews aren't shocked by power your panels are still producing. To ride through an outage, you need a battery or a generator. A battery has the advantage of charging itself from your solar; a generator needs fuel on hand. Either one works — we help you figure out which fits your house.
Yes. The retrofit is straightforward as long as your existing inverter is battery-compatible — and if it's not, there's almost always a workaround that doesn't require replacing the panels.
That's the normal case. A whole-home electrification plan is a multi-year plan, not a one-weekend install. The point of writing the plan first is so the pieces you do install today don't get in the way of the pieces you add in year three. Plan it once, build it as you can afford it.
A first remote consultation runs about 45 minutes. We look at your bills, your roof, your goals, and where you are in your renovation or planning timeline. You leave with a rough plan; we leave with enough to write up a real one. No commitment on either side.