ハイブリッド式オフグリッド（自家発電・消費）生活 Hybrid style off-grid (self-generation and consumption) living

①  電力会社からの電気は使用しないで、消費する電気の全てを自家発電する方法。

②  他の一つは電力会社からの電気と自家発電の電気を共用する方法（ハイブリッド方式）。

「ひまわり発電所」（SFPS、自動太陽追尾式の小型高効率太陽光発電・蓄電システム（写真、ベランダ・狭地用）は後者で、家庭内電化製品が消費する電気量の数十パーセントを自家発電電気で賄います。そして、万一の夜間停電に備えて蓄電池残量を約50%に保持します。

現在の「ひまわり発電所」は技術開発目的でテスト使用中で、400ワットと非常に小さく、自家発電と商業発電の二つの電気の共用システムです。これは二つの電気のウィン・ウィンの関係です。

二つの電気の間の必要な切り替え、すなわち自家発電電気から電力会社電気への切り替え、はスマホを使って手動で、又はシステムが自動的に行います（無発電で蓄電池残量がゼロ％になった時）。

これまでに構築されている発電所や配電網などインフラ設備を無駄にせず、有効にこれらを共用活用することは大切です。

Hybrid style off-grid (self-generation and consumption) living:

One is to completely stop the use of electricity from the power company and to generate all electricity consumed on site.

The other is to share the electricity generated by the power company and the electricity generated by ourselves (a hybrid).

The Sunflower Power Station (SFPS, a compact, high-efficiency solar power generation and storage system with automatic tracking (photo, for balconies and narrow lots)) is the latter, and generates several tens of percent of the power consumed by appliances in the home.

And the remaining storage battery capacity is maintained at approximately 50% in case of nighttime power outages.

The current Sunflower Power Plant, which is in test use for technical development purposes and very small in generation size (400W), is a shared system (a hybrid system) of two types of electricity: private and commercial power generations. It's a win-win relationship with the sharing of two types of electricity.

The necessary switching between the two types of electricity, i.e., from self-generated electricity to utility electricity, is done manually using a smartphone or automatically by the system (when there is no power generation and the remaining storage battery capacity reaches zero percent).

It is important to make effective shared use of the infrastructural facilities like the power plants and the power distribution network that have been built so far, without wasting them.