⚡ HDM Prepaid PPA — Now Available

Save 25–30%* on Solar & Battery Storage

Ally Electric & Solar now offers the HDM Prepaid PPA — a smarter way to go solar. Pay once at a deeply discounted price with zero monthly payments, and receive full ownership of your system after HDM's six-year agreement term. No personal tax credit required.

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No obligation · Bay Area licensed since 2010 · CSLB #806465

*Savings range is typical for HDM Prepaid PPA projects; actual savings vary by system size, equipment, and final HDM agreement terms.

The HDM Prepaid PPA is offered in partnership with HDM Capital, which owns the solar and/or battery system during the agreement term and is responsible for delivering power or storage services. Ally Electric & Solar designs, permits, and installs your system and remains your point of contact throughout.

25–30%*Est. Savings vs. Cash Price
$0Monthly PPA Payments
15+Years Bay Area Experience
25–30Years System Life
The HDM Difference

What Is the HDM Prepaid PPA — and How Does It Work?

A prepaid agreement with a built-in ownership transfer, structured around a simple timeline.

A Smarter Structure, A Bigger Discount

With the HDM Prepaid PPA, you pay one discounted lump sum for your solar and/or battery system — typically 25 to 30% less than standard retail cash price. There are no monthly bills and no escalators.

HDM Capital, the financing partner Ally works with on this program, owns the system during the agreement term and may apply commercial tax incentives to structure a lower up-front price for you — without requiring you to have personal tax liability. The value of those incentives may be reflected in a lower prepaid price at signing.

It's not a lease. It's not a loan. It's a prepaid Power Purchase Agreement (or Energy Storage Services Agreement): HDM retains ownership and delivers the power or battery services during the term, then transfers ownership and associated warranties to you at no additional cost after six years of production, per the agreement terms.

💰25–30% Discount*May be lower than many standard residential financing options, depending on your project.
📅Zero Monthly PPA PaymentsOne upfront payment covers the agreement term — no bills, no escalators.
🏠Ownership After 6 YearsTitle and warranties transfer to you at no additional cost, per the agreement terms.
⚡Solar + Battery EligibleWorks with Powerwall, Enphase, and FranklinWH.
How ownership works: Day 1 — you make your prepaid payment and HDM Capital owns the system. Years 1–6 — HDM delivers power/storage services and carries the ownership obligations. After year 6 — HDM issues a transfer notice, and ownership plus associated warranties pass to you at no additional cost, based on the agreement terms. From that point, you're fully responsible for the system.
Why Ally

Six Reasons Bay Area Homeowners Choose the HDM Prepaid PPA

No gimmicks, no fine print traps — just a clear, discounted path to owning solar in the Bay Area.

💸

Strong Upfront Discount

Typically save 25–30% compared to paying full cash price for an equivalent system, depending on your project.

🚫

Zero Monthly PPA Payments

Unlike a loan or traditional PPA, there's no monthly bill for the agreement itself.

🏡

Ownership Transfers to You

After six years of production, ownership and warranties transfer at no additional cost, per the agreement.

🔐

Reduce Rate Exposure

PG&E rates have risen over 50% in the last decade. Producing more of your own energy onsite can reduce your exposure to future rate increases.

🔋

Battery Backup Included

Add a Tesla Powerwall, Enphase, or FranklinWH battery under the same HDM structure.

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Licensed Bay Area Experts

Ally holds C10 and C46 CSLB licenses, serving Alameda, Contra Costa, Marin, and Santa Clara Counties since 2010.

Simple Process

How the HDM Prepaid PPA Works

Three steps, structured around the six-year ownership timeline.

1

Get Your Free Custom Estimate

Ally's Bay Area solar experts design a system sized for your actual usage — solar, battery storage, or both — and calculate your HDM discounted price alongside your projected savings.

2

Pay Once — Then Relax

You make a single upfront payment at the HDM Prepaid PPA price. Ally handles permits, interconnection, and installation. HDM owns the system and delivers power or storage services during the term — no monthly PPA bills.

3

Receive Ownership After Year 6

After six years of production, HDM issues a transfer notice, and ownership plus all associated warranties pass to you at no additional cost, per the agreement terms. From there, you're fully responsible for the system.

Real Numbers

See What a 25–30% Discount Looks Like

A representative example for a Bay Area home going solar + battery with the HDM Prepaid PPA.

Sample System: Solar + Battery (Bay Area Home)
Standard Cash Price$45,000
HDM Prepaid PPA Price (28% off)$32,400
Your Day-One Savings$12,600
Monthly PPA Payments$0
Ownership TransferAfter 6 years, at no additional cost*
Estimated 25-Year Energy Savings vs. PG&E$60,000–$100,000+

*Per HDM's agreement terms. Example is illustrative. Actual pricing, savings, and transfer terms depend on system size, your current usage, utility rate trajectory, available incentives, and your final HDM agreement. Ally will prepare a custom savings projection for your home at no charge.

Common Questions

Frequently Asked Questions About the HDM Prepaid PPA

It's a Prepaid Power Purchase Agreement (or Energy Storage Services Agreement) offered through HDM Capital, Ally's financing partner. HDM owns the system and delivers power or storage services during the agreement term in exchange for your one-time upfront payment — typically 25–30% below standard retail. After six years of production, HDM transfers ownership and associated warranties to you at no additional cost, per the agreement terms.
HDM Capital owns the solar and/or battery system during the agreement term. Ally Electric & Solar designs, permits, and installs your system, and remains your installation and support contact — while HDM's ownership and service obligations during the agreement term are governed by the HDM agreement.
No. That's one of the advantages of the HDM Prepaid PPA over a traditional cash purchase paired with a personal tax credit. HDM, as the system owner during the term, may apply commercial tax incentives — your savings are built into the discounted price regardless of your personal tax situation. This can be especially useful for retirees or anyone with limited tax credit appetite.
Correct for the PPA/ESSA itself. The HDM Prepaid PPA requires a single upfront payment, with no monthly PPA bills or escalator clauses afterward. You'll still receive your regular PG&E bill for any power you import from the grid, but your solar generation and/or battery offsets a significant portion of that.
HDM Capital owns the system during the six-year agreement term. After six years of production, HDM issues a transfer notice, and ownership — along with all workmanship and equipment manufacturer warranties — passes to you at no additional cost, as outlined in the agreement. No buyout payment is required. Full details are provided in your HDM agreement before you sign.
At the transfer date, all workmanship and equipment manufacturer warranties associated with the system are automatically assigned to you, along with full ownership and responsibility for the system going forward.
The HDM Prepaid PPA can cover solar-only systems, battery-only retrofits, or combined solar + battery systems, subject to HDM program approval. Ally installs Tesla Powerwall 3, Enphase IQ Battery, and FranklinWH — all eligible under the same discount structure. Battery storage is especially useful for time-of-use rate management under PG&E's NEM 3.0.
The Prepaid PPA can transfer to a new homeowner as part of your home sale, or Ally can work with you and HDM to arrange other options. A solar system with battery backup can be a selling point for many buyers. We'll walk you through the specifics during your consultation.
Ally Electric & Solar serves Alameda, Contra Costa, Marin, and Santa Clara Counties — including Berkeley, Oakland, Richmond, El Cerrito, Albany, Hayward, San Leandro, Orinda, Walnut Creek, Palo Alto, and surrounding communities. We're based in Richmond, CA and licensed by the CSLB (C10 & C46, #806465).
The commercial incentive structures that support HDM's pricing are subject to federal policy and program availability. While pricing can't be guaranteed indefinitely, Ally is offering the HDM Prepaid PPA now — homeowners seriously considering solar should lock in their estimate before any program changes take effect.
Ally handles everything from design and permitting through city inspections and PG&E interconnection. Most residential solar + battery installations are completed within a few weeks of permit approval. We've permitted and installed in Berkeley, Oakland, Albany, Hayward, Palo Alto, and dozens of other Bay Area jurisdictions since 2010.
SGIP (Self-Generation Incentive Program) eligibility and rebate amounts depend on the specific program tier, customer income qualification, and utility territory. Ally is an active SGIP participant and can advise whether SGIP incentives apply to your project and how they interact with HDM pricing. Call us or submit your estimate request and we'll review your specific situation.
✓ CSLB Licensed C10 & C46 #806465 ✓ Bay Area Since 2010 ✓ Permitted in 20+ Bay Area Cities ✓ Tesla, Enphase & FranklinWH Certified ✓ SGIP Approved Contractor

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Ally Electric & Solar Inc. · 855 Marina Bay Pkwy, Ste. 280, Richmond, CA 94804 · CSLB License C10 & C46 #806465 · Serving Alameda, Contra Costa, Marin & Santa Clara Counties · Bay Area Since 2010