As part of a recent series of small changes and tweaks made throughout seemingly all facets of its business, Tesla updated its current "Referral Program" rewards list Friday night, adding a special "Founder's Series" red Powerwall 2.0 prize to those who make 7+ referrals.

The company promises that this model will not be sold to the public, thus guaranteeing exclusivity (and probably some future availability at a premium on ebay).

The new look of the Tesla Powerwall 2.0

The new look of the Tesla Powerwall 2.0

The standard issue Powerwall 2.0 is valued at $5,500, and to add to that value, winners receive the energy storage system signed by CEO Elon Musk, CTO JB Straubel, and Design Chief Franz von Holzhausen.

Says Tesla in a letter to owners:

“We’ve made some exciting updates to our referral program awards. Owners with 7 or more qualifying referrals will receive an exclusive red Founders Series Powerwall 2.0, hand signed by Elon Musk, JB Straubel, and Franz von Holzhausen. This award is not available for purchase. Just share your personal code with friends, family, or anyone else. They can use the code to get a $1,000 credit towards a new Model S or X until January 15, 2017.”

Tesla's 2nd generation Powerwall begins shipping to customers this December, and features a new 14 kWh capacity (technically 13.5 kWh usable), and  a 7 kW output rating.  The new Powerwall 2.0 also features a Tesla-made (at the Gigafactory) inverter included in the package.

Full specs can be found below – Tesla’s new Powerwall 2.0 page can be found here.

Tesla Powerwall 2.0 Specs

Tesla Powerwall 2.0 Specs

Here is the full list of referral rewards for the current program that runs through January 15, 2017:

Referral Program

To show our appreciation, referring owners will be eligible for our Referral Program awards:

Elon Musk introduces new Powerwall 2.0 from the stage at Universal Studios in Los Angeles, California in October

Elon Musk introduces new Powerwall 2.0 from the stage at Universal Studios in Los Angeles, California in October

10 Qualifying Referrals Those who make 10 qualifying referrals will receive an invitation for them and a guest to attend our next Tesla unveiling event.

7+ Qualifying Referrals Those who make 7 or more qualifying referrals will receive an exclusive red Founders Series Powerwall 2.0, hand signed by Elon Musk, JB Straubel, and Franz von Holzhausen. This limited edition Powerwall is not available to the public.

5+ Qualifying Referrals Those who make 5 qualifying referrals will receive an invitation for them and a guest to take an extended VIP tour of the Tesla Factory in Fremont, California, including a Q&A with Franz von Holzhausen, Tesla’s Chief Designer.

3+ Qualifying Referrals Those who make 3 or more referrals will receive an exclusive thermal Tesla Owners Jacket.

2+ Qualifying Referrals Those who make 2 or more qualifying referrals will receive a Tesla carry-on.

Ludicrous P100D Model S or Model X Each qualified referral you make gives you an additional entry into a drawing to win your choice of either a Ludicrous P100D Model S or Model X.

We know that without our customers we would not be where we are today. This is our way of thanking you for your support in building the Tesla community.

Awards Owners who won awards in the program that ended October 15, 2016 will receive email instructions after the Model X drawing on or around October 31.

Credits to owners from previous programs will expire on December 31, 2016.

Limits Related order must be placed between October 16, 2016 and January 15, 2017 and delivered for a referral code to qualify. Pre-owned vehicles are not eligible. Limit of 10 referrals per owner.

Must be at least 18 years old to be eligible for awards. No entry fee, payment or purchase required for the drawing. A random drawing will be held on or around January 31, 2017 to determine the winner. The winner will be contacted thereafter. Awards are non-transferable and not redeemable for cash. The winner is responsible for all taxes and local requirements and fees. Program and awards are conditional on and subject to local laws and regulations. Unfortunately, Ohio and Virginia residents are not eligible for awards.

Good Faith

We introduce programs such as these in good faith and expect the same good faith in return. Please note that we may withhold awards where we believe customers are acting in bad faith or otherwise acting contrary to the intent of this program. To be clear, commercializing or otherwise selling referral codes is not appropriate, and we will not honor such codes. We cannot cover every nefarious scenario, nor will we attempt to, but we do promise to be fair and reasonable.