Our Analyses Speak for Themselves.
Our own operating sites with real data, external case studies and anonymised client analyses: HSG’s role is clearly identified in each case. The examples explain technical and economic relationships and support robust decisions.
Building, Energy and Mobility as One System
HSG's own Innovation HUB in Frickenhausen: 77 kWp PV, around 70,000 kWh of annual generation, 270 kWh of storage, plus AC and 150 kW DC charging – with clearly separated roles for HSG and HUMMEL energize.
Photovoltaics
77 kWp
Battery Storage
270 kWh
DC Fast Charging
150 kW
Villa Neuffen: All-Electric Since 2016 — Ten Years of Operating Experience
500 sqm premium residence with no gas or heat pump. PV, infrared heating and storage. The 2016 model shows a net electricity cost balance of EUR 856 per year; the concept was remodelled in 2026.
Net Cost Balance
856 €/a
PV Generation
29,3 MWh/a
Since
2016
Weckermann: Sector Coupling in Manufacturing
AWVision23 in Eisenbach connects solar PV, batteries, hydrogen and heat utilisation. Frank Hummel visited on 19 March. August Weckermann and its partners are responsible for planning, delivery and operation; HSG provides the entrepreneurial assessment.
PV · Operator Figure
2.700 kWp
Storage · Operator Figure
3.400 kWh
Investment · Published
8,0 Mio. €
All-Electric Industrial Quarter: approx. 2.5M EUR CAPEX Savings
A historic industrial site in southern Germany becomes a forward-looking mixed-use quarter — with a radically simplified energy concept that saves millions.
Power Demand
5 MW
CAPEX Savings
ca. 2,5 Mio. €
Own Generation
4.500 MWh/a
Green Hydrogen for Process Steam: 5.40 ct/kWh Cheaper Than Natural Gas
A turnkey concept shows how industrial companies can switch steam generation from natural gas to green hydrogen — with 16.22% IRR and 25M EUR advantage over 20 years.
Electrolysis
1.000 kW
Savings
5,40 ct/kWh
IRR
16,22 %
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