HDC Co. | SO Number 5001673600 | Potomac Edison MD | 800-233-9373 | solarfarm@harisdesign.com

Full Contract Terms: Please review the complete terms and conditions that follow. This summary does not include all relevant terms of the subscription agreement.

HDC Co. | SO Number 5001673600 | Potomac Edison MD | 800-233-9373 | solarfarm@harisdesign.com

Please attach the completed form to the Contact Us Web Form: https://www.firstenergycorp.com/content/fecorp/supplierservices.html

I hereby authorize my electric utility to act on my behalf to provide 12 months of my historical electricity usage to the Maryland Community Solar Program. Customer usage information is considered confidential.

Subscriber Organization Information

Subscriber Organization Host / Third Party Representative Name	Haris Design & Construction
Subscriber Organization ID Number	5001673600
Interconnection GEN Number	GEN-CS-7022

This authorization is valid for 90 days from the above date.

The authorization form on the previous page asks for your 20-digit Customer Number. This is not the account number printed in the top right corner of your bill — that number is shorter and will not work. Use the diagram below to find the correct number.

• The number is 20 digits long.
• It begins with 080.
• It appears under the heading "Charges From Potomac Edison."
• It is not the shorter account number in the top right corner of page one.

If you cannot locate it, call Potomac Edison at 1-800-686-0011, or contact us and we will walk you through it.

HDC Co. | SO Number 5001673600 | Potomac Edison MD | 800-233-9373 | solarfarm@harisdesign.com

This Community Solar Subscriber Agreement (the "Agreement") is entered into as of the date it is signed by Seller (the "Effective Date"), between you (the "Subscriber," "you," or "your"), identified in the digital record of your electronic signature accepting these terms, and Haris Design and Construction Co., doing business as HDC Co. ("HDC Co.," "Seller," "we," "us," or "our"), the owner of a solar photovoltaic system participating in the Maryland Community Solar Program. Details of the system (the "System") appear on page 1 of this document.

You are subscribing to a share of the energy generated by the System (your "Subscription"). That share produces kWh or monetary credits that reduce your Potomac Edison bill ("Credits").

For every Credit applied to your bill, you pay us a "Subscription Payment" equal to 90% of the monetary value of that Credit. Your savings — the "Discount" — is therefore at least 10% of the value of the Credits you receive.

Example: If you receive $100 in Credits in a billing month, your Subscription Payment is no more than $90, and you save at least $10.

We will never reduce your Discount during the term of this Agreement. If we increase it, we will notify you by email at least 30 days beforehand.

Because your payment is calculated from the value of the Credits, it will change as utility rates change and as solar production varies. As of the date of this Agreement, the Potomac Edison bill credit rate is approximately $0.166 per kWh, which puts your estimated subscription price at approximately $0.149 per kWh. This is a good-faith estimate only; the actual rate may rise or fall, and your minimum 10% Discount applies regardless.

This Agreement is a service contract. We are not a utility. Your Subscription Payment is not regulated by the Maryland Public Service Commission and does not include any tax, commodity, utility distribution or transmission charge, or any other utility fee. Neither we nor your utility makes any representation about the tax implications of any Credits.

There are no signup fees, monthly fees, administrative fees, cancellation fees, or security deposits under this Agreement.

This Agreement begins on the Effective Date and continues until either you or we cancel it. There is no fixed end date, no renewal step for you to take, and no penalty for ending it.

Your right to cancel. You may cancel at any time, for any reason, at no cost, by notifying us under Section 10. Within three business days of signing you may cancel with no further obligation — see the Notice of Cancellation at the end of this document. After that period, we will promptly direct your utility to stop allocating Credits to you. Utilities typically take up to 90 days to process a cancellation. Until we confirm in writing that the utility has processed it, you continue to receive Credits and continue to pay for them at the same discounted rate — never more than 90% of their value.

Transfers. You may transfer this Agreement to another utility account at no charge, provided we determine that the account is eligible to receive Credits from the System and the account holder accepts these terms.

Our right to cancel. We may end this Agreement for convenience by giving you at least 90 days' notice by email. We may also end it if you are in default under Section 7.

We calculate your initial Subscription size so that it generates Credits no greater than your estimated annual electricity cost, and it will always remain within the limits set by the Maryland Community Solar Program.

We may adjust your Subscription size at any time without notice, provided that we will never set a size that generates Credits exceeding your estimated annual electricity cost, and that your allocation will at all times comply with applicable limits under the Maryland Community Solar Program. Your Discount is unaffected by any such adjustment.

You may decrease your Subscription size at any time by giving us at least 90 days' written notice under Section 10.

We may reassign your Subscription to a different solar system participating in the Program by giving you notice. If we do, that system becomes the "System" under this Agreement, and all of your terms — including your Discount — stay the same.

Billing under this Agreement is handled by your utility through Utility Consolidated Billing. Your utility subtracts your Subscription Payment from your Credits and shows the result as a net reduction on your utility bill. Your utility then forwards your Subscription Payment to us. You will not receive a separate bill from us, and you remain responsible for paying your utility bill as usual.

If Utility Consolidated Billing becomes unavailable during the term of this Agreement, we may move you to separate billing after giving you prior notice. Under separate billing, you would receive a monthly invoice from us or our billing service provider, payable by the due date shown on the invoice. Your Discount would not change.

The production estimates and the method used to prepare them appear on page 1 of this document. Actual production will vary with weather, seasons, and equipment performance.

If the System is out of service for more than three consecutive business days, we will notify you by email or another reasonably accessible method. That notice will include the estimated duration of the outage and the estimated production that will be lost. No outage will ever affect the electricity service to your property — your utility continues to serve you exactly as before.

If the System underperforms, your Subscription Payment falls in proportion, because you only ever pay for Credits actually applied to your bill. You are never charged for energy the System does not produce.

We take the protection of your personal and utility account information seriously, and we commit to the following for as long as we hold your data.

• What we collect. Your name, service address, contact details, utility account number, and your historical and ongoing electricity usage and billing data — and nothing beyond what is needed to enroll you, size your Subscription, and administer your account.
• What we use it for. Enrolling you in the Program, determining your Subscription size, administering billing with your utility, and communicating with you about your Subscription. We do not use it for anything else.
• We do not sell your information. We do not sell, rent, or trade your personal or usage data to anyone, and we do not share it for third-party advertising.

• Who we share it with. Only your utility, the Maryland Public Service Commission where required, and service providers who help us operate the Program — each of whom is bound by confidentiality obligations at least as protective as those in this Section, and none of whom may use your data for their own purposes.
• How we protect it. We use industry-standard safeguards, including encryption of your data in transit and at rest, access limited to personnel who need it to do their jobs, and regular review of our security practices.
• If something goes wrong. If we become aware of a breach affecting your personal information, we will notify you without unreasonable delay and in accordance with Maryland law, and tell you what happened and what we are doing about it.
• How long we keep it. Only as long as needed to administer your Subscription and meet our legal and regulatory record-keeping obligations. After that, we securely delete or anonymize it.
• Your rights. You may request a copy of the information we hold about you, ask us to correct it, or ask us to delete it once it is no longer required for legal or regulatory purposes. Contact us using the details in Section 10 and we will respond within 30 days.

Our full Privacy Policy is listed on page 1 and forms part of this Agreement. If the Privacy Policy and this Section ever conflict, this Section controls.

You acknowledge that you have no right to Solar Incentives, Environmental Attributes, or Unsubscribed Credits relating to the System, and you disclaim any such right. "Solar Incentives" means accelerated depreciation, installation or production-based incentives, investment tax credits, subsidies, and similar benefits. "Environmental Attributes" means renewable energy credits or certificates, carbon trading credits, emissions reduction credits, emissions allowances, green tags, and similar tradable rights. "Unsubscribed Credits" means Credits produced by the System that are not allocated to you or another subscriber; these are sold to the local electric utility.

Default. You are in default if a payment due under this Agreement remains unpaid for 10 days. If you are in default, we may end this Agreement. If we do, you remain responsible only for amounts owed on Credits you have already received, plus Credits received during the 90 days after termination while the utility processes it. You will not owe us anything else.

We may assign or transfer our rights and obligations under this Agreement to a third party, provided that the assignee is an approved subscriber organization under the Maryland Community Solar Program and assumes our obligations. We will notify you of any assignment. Your terms, including your Discount, will not change as a result.

Neither party will be liable to the other under this Agreement for amounts exceeding three months of the average Subscription Payment.

This Agreement is governed by the laws of the State of Maryland, without regard to conflict of laws principles.

If you have a concern or complaint, please contact our customer experience team first, using the details in Section 10. Most issues are resolved quickly this way.

You may also contact the Maryland Public Service Commission at any time, at 800-492-0474 or www.psc.state.md.us. Nothing in this Agreement limits that right.

If a dispute cannot be resolved directly, it will be resolved by binding arbitration before a single arbitrator administered by JAMS under its Streamlined Arbitration Rules, at the JAMS or other accredited arbitration office closest to your residence or place of business. Judgment on the award may be entered in any court of competent jurisdiction. Either party may still seek provisional remedies from a court in aid of arbitration.

You may opt out of arbitration and keep your right to go to court. To do so, send us written notice within 45 days of the date of this Agreement, by certified mail, return receipt requested, to the address in Section 10. Include your name, address, the date of this Agreement, and a statement that you wish to opt out of the Arbitration Provision. Send nothing else with it. We will reimburse you the standard cost of the certified letter. Opting out affects nothing else in this Agreement.

In any arbitration, the arbitrator may award the prevailing party its reasonable costs and attorneys' fees, or an appropriate percentage of them where each party prevails in part. The arbitrator may award any legal or equitable remedy a court could grant under this Agreement, but may not change its terms or extend an award beyond your transaction. All applicable statutes of limitation apply. The arbitrator will issue a written decision stating the essential findings of fact and conclusions of law.

Notices under this Agreement must be in writing and delivered by personal delivery, email, overnight courier, or certified or registered mail with return receipt requested. Notices to us go to:

Haris Design and Construction Co.
3520 Sugarloaf Pkwy, Ste FO3 PMB 1010
Frederick, MD 21704
Email: solarfarm@harisdesign.com
Phone: 800-233-9373

This Agreement, together with the pages and documents referenced in it, is the entire agreement between us about your community solar subscription, and replaces any prior written or oral understandings. Any change must be in writing. If any provision is found unenforceable, the rest remains in effect and that provision will be interpreted or rewritten so as to be enforceable. This Agreement may be signed in counterparts and by electronic signature, which has the same effect as an original signature.

By signing below, you confirm that you have read this Agreement, that you received the Contract Summary before signing, and that you agree to these terms.

08/10/2026

Agreement Version 1

The following documents are referenced in this Agreement and form part of it. Each is listed below with the version in effect on the date you signed.

Each document name below links to the document. The web address is also printed beneath it, so you can reach the document from a paper copy of this Agreement. If you have any difficulty accessing a document, contact us using the details in Section 10.

Attachments

Document	What it covers	Version / Date
HDC Co. Privacy Policy sign.mymarylandsolar.com/docs/privacy	How we collect, use, store, and protect your personal and utility account information, and how to exercise your rights over it. Section 6 of this Agreement controls in the event of any conflict.	Version 1 August 10, 2026 Referenced in Section 6
HDC Co. Certificate of Insurance sign.mymarylandsolar.com/docs/insurance	Evidence of the insurance carried in connection with the Frederick Community Solar Farm, as required by the Maryland Community Solar Program.	Version 1 August 10, 2026 Referenced on page 1
HDC Co. Long-Term Maintenance Plan sign.mymarylandsolar.com/docs/ maintenance	How the System is inspected, serviced, and maintained across its operating life, and who is responsible for that work.	Version 1 August 10, 2026 Referenced on page 1

HDC Co. Privacy Policy

 

HDC Co. Certificate of Insurance

 

HDC Co. Long-Term Maintenance Plan

These documents may be revised from time to time. The version in effect on the date you signed is the version that applies to your subscription, and is identified by the version number and date shown above.

You may cancel this transaction, without any penalty or obligation, within three business days from the effective date of your subscription.

If you cancel, any property traded in, any payments made by you under the contract or sale, and any negotiable instrument executed by you will be returned within 10 business days following receipt by the seller of your cancellation notice, and any security interest arising out of the transaction will be canceled.

If you cancel, you must make available to the seller at your residence, in substantially as good condition as when received, any goods delivered to you under this contract or sale; or you may, if you wish, comply with the instructions of the seller regarding the return shipment of the goods at the seller's expense and risk.

If you do make the goods available to the seller and the seller does not pick them up within 20 days of the date of your notice of cancellation, you may retain or dispose of the goods without any further obligation. If you fail to make the goods available to the seller, or if you agree to return the goods to the seller and fail to do so, then you remain liable for performance of all obligations under the contract.

To cancel this transaction, mail or deliver a signed and dated copy of this cancellation notice, or any other written notice, to:

Haris Design and Construction Co.
Attention: Legal Department
3520 Sugarloaf Pkwy, Ste FO3 PMB 1010
Frederick, MD 21704

I hereby cancel this transaction.

You may cancel this transaction, without any penalty or obligation, within three business days from the effective date of your subscription.

If you cancel, any property traded in, any payments made by you under the contract or sale, and any negotiable instrument executed by you will be returned within 10 business days following receipt by the seller of your cancellation notice, and any security interest arising out of the transaction will be canceled.

If you cancel, you must make available to the seller at your residence, in substantially as good condition as when received, any goods delivered to you under this contract or sale; or you may, if you wish, comply with the instructions of the seller regarding the return shipment of the goods at the seller's expense and risk.

If you do make the goods available to the seller and the seller does not pick them up within 20 days of the date of your notice of cancellation, you may retain or dispose of the goods without any further obligation. If you fail to make the goods available to the seller, or if you agree to return the goods to the seller and fail to do so, then you remain liable for performance of all obligations under the contract.

To cancel this transaction, mail or deliver a signed and dated copy of this cancellation notice, or any other written notice, to:

Haris Design and Construction Co.
Attention: Legal Department
3520 Sugarloaf Pkwy, Ste FO3 PMB 1010
Frederick, MD 21704

I hereby cancel this transaction.