Concept Housing Cooperative

Soloof House Energy Solution (SHES) for Housing Cooperatives

  • Do you want your coop­er­a­tive mem­bers to be able to pur­chase elec­tric­i­ty direct­ly from their build­ing’s roof at a low cost?
  • You have already installed a pho­to­volta­ic sys­tem but lack a solu­tion for dis­trib­ut­ing the gen­er­at­ed pow­er among dif­fer­ent ten­ants?

Then the SHES is your solu­tion. The SHES offers hous­ing coop­er­a­tives a safe, effi­cient, and com­mu­nal solu­tion for elec­tric­i­ty sup­ply. With a SHES sys­tem, clean solar pow­er is dis­trib­uted direct­ly to the mem­bers – legal­ly secure, trans­par­ent, and avail­able for shared use.

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⚙️ System Setup

The set­up is out­lined in the image above:

  • A pho­to­volta­ic sys­tem is locat­ed on the roof. Its dimen­sions are deter­mined sole­ly by the roof’s size, not by the poten­tial con­sump­tion of indi­vid­ual ten­ants.
  • A cen­tral con­trol unit directs the elec­tric­i­ty either to the house­holds or charges a bat­tery.
  • Each house­hold has its own elec­tric­i­ty meter and an invert­er which con­verts the direct cur­rent from the rooftop sys­tem into alter­nat­ing cur­rent. All invert­ers have the same size.
  • The invert­er ensures that no elec­tric­i­ty flows from the grid towards the bat­tery and also that no more elec­tric­i­ty flows than the house­hold is cur­rent­ly con­sum­ing. This so-called zero feed-in legal­ly ensures that the sys­tem oper­ates com­plete­ly inde­pen­dent­ly of the pub­lic pow­er grid.
  • The elec­tric­i­ty meter is MID-com­pli­ant. Its read­ings are there­fore rec­og­nized as cal­i­brat­ed by the tax office. Legally, the sys­tem oper­a­tor sells the com­mod­i­ty of elec­tric­i­ty to the ten­ant. Consequently, the tax­es for the sale of elec­tric­i­ty apply. We offer the ser­vice of han­dling the account­ing for both the tax office and the ten­ant.
  • You have the choice of whether you wish to own, build, or oper­ate the sys­tem your­self.

📈 Benefits for the Cooperative

  • Shared Benefit: The solar pow­er is avail­able to all mem­bers on an equal basis.
  • Planning Reliability: Long-term sta­ble ener­gy costs for the entire coop­er­a­tive.
  • Future-Proof: Flexible expan­sion with stor­age or e‑charging infra­struc­ture is pos­si­ble at any time.

✅ Benefits for Cooperative Members

  • Low Electricity Price: Direct pur­chase of solar pow­er with­out grid fees and mar­ket fluc­tu­a­tions.
  • Freedom of Choice: The exist­ing elec­tric­i­ty sup­ply con­tract is main­tained. Everyone can con­tin­ue to buy elec­tric­i­ty from the sup­pli­er of their choice. No ten­ant is oblig­at­ed to par­tic­i­pate in the SHES.
  • Transparency: Each house­hold can see the avail­abil­i­ty of elec­tric­i­ty from the roof and adjust their con­sump­tion behav­ior accord­ing­ly.
  • Sustainability: Everyone can con­tribute to a bet­ter cli­mate.

💡 Conclusions

With the SHES, the hous­ing coop­er­a­tive becomes an ener­gy net­work. All mem­bers ben­e­fit from afford­able, sus­tain­able elec­tric­i­ty, while the coop­er­a­tive as a whole enhances its eco­log­i­cal and eco­nom­ic strength.