MMR Solar

MMR Projekt GmbH

Altenstadt, Hesse, Germany

SolarEnergy StorageLimited company

Founded 20211 GW installed

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Profile last updated: October 20, 2026

About

Founded in 2021, MMR Solar is a limited company headquartered in Altenstadt, Germany specializing in Solar, Energy Storage.

MMR Solar is the brand of MMR Projekt GmbH, a solar project developer and renewable energy consultancy founded in May 2021 and based in Altenstadt, Hesse, with offices in Ranstadt (Hesse) and Celle (Lower Saxony). The company develops, plans, finances and builds rooftop and ground-mounted photovoltaic systems, offers project controlling and full-service project handling, and provides community participation models such as local investment and crowd-investing. Its stated focus is on Hesse and Lower Saxony, with projects across Germany. The company states it is owner-managed and self-financed and reports more than 1,000 MW of implemented projects. It also runs local sponsorships and charitable donations and has a biodiversity-focused approach to solar parks.

Headquarters

Altenstadt, Germany

Founded

2021

Company type

Limited company

Focus areas

solar parksrooftop solarground-mounted solarproject developmentproject financingcommunity participationcrowd investingbiodiversitylocal electricity tariffsHesseLower Saxony

Products & services

Business models

B2BB2CIPP

Value chain

DevelopmentConsultingAdvisoryConstructionCommunity Engagement

Service areas (1)

Solar project development and financing
Development, planning, financing and construction support for rooftop and ground-mounted solar PV projects, with a regional focus on Hesse and Lower Saxony.

Locations

Headquarters

Stockheimer Straße 67, 63674, Altenstadt, Hesse, Germany

Operating locations (2)

Hassia Höhe 20, Ranstadt, Hesse, Germany
Celle, Lower Saxony, Germany

Service regions

Germany

Projects

Solarpark Ahnsbeck

Under ConstructionGround-mounted solar PV

40-hectare solar park near Celle; construction started with a groundbreaking ceremony.

Ahnsbeck, Germany

Solarpark Lachendorf

Under ConstructionGround-mounted solar PV

One of the largest photovoltaic plants in the region, with 95,000 PV modules; construction started with a groundbreaking ceremony in Samtgemeinde Lachendorf.

Lachendorf, Germany