watts
Services
Concepts and feasibility studies
Feasibility studies form the basis for well-founded decisions in the early project phase. watts analyzes energy systems, buildings, use and environment, develops systemic preliminary concepts and evaluates variants as a basis for planning a reilient solution.
System planning and preliminary concept — based on HOAI LP 1–2
Laying the baseline
- Analysis of current and future energy requirements, uses and planned construction measures
- Recording the existing situation as part of technical due diligence with a focus on energy generation, heat, electricity and cooling distribution, transfer systems and building physics
- Classification in regulatory requirements and funding conditions (GEG, RE shares, EnWG, EEG, BEW, BEG)
- Definition of targets in terms of efficiency, comfort, cost-effectiveness and robustness
Systemic pre-conceptualization
- Development of integrated energy and building systems with consideration of the operator model (contracting, lease model, own operation)
- Evaluation of passive measures such as free ventilation and low-tech approaches
- Variant analysis of manufacturing and operating costs, emissions, risks and eligibility for subsidies
- Derivation of a technically and economically viable preferred system
Results
- Structured decision-making basis for clients, owners and planners
- System sketches, characteristic value comparisons and variant evaluations
- Preparation of further planning and implementation through downstream specialist planning
Energy systems — BEW transformation plans, photovoltaic and wind power analyses
Building solutions — BEG refurbishment roadmaps, climate design and low-tech concepts
Urban and neighborhood development — municipal heat planning, climate adaptation concepts
Feasibility study “Blechenstrasse heating solution”
Feasibility study for the heat supply of a residential complex in Berlin: analysis of the existing natural gas-based situation, techno-economic comparison of district heating and heat pump solutions as possible alternatives with CO₂ price risk assessment. Goal: Efficient, resilient heat supply for 67 residential units.
Funding and sub-project management LowEx network TXL
We are supporting the development of the innovative bidirectional LowEx network on the former site of Berlin Tegel Airport.
Refurbishment roadmap and implementation support
Technical status analysis of the electricity-based, decentralized heating and cooling supply with development of measures to reduce energy costs. Focus: operational optimization of ventilation and air conditioning units with measurement and control adjustment
Energy analysis and district heating check
The heating, cooling and power supply for the Toom store in Hanover was analyzed. The analysis focused on the economic analysis for the conversion of natural gas-based heat generation to district heating.
Energy concept and implementation consulting
Since 2025, there has been a new energy supply for the www.stechlin-institut.org. In the middle of the forest, a water-bearing wood-burning stove provides cozy warmth in selected zones on cold days. A geothermal heat pump provides the basic temperature, supplemented by solar thermal energy for hot water. Photovoltaic modules and translucent PV elements on the terrace roof match the roof. An electric charging station completes the infrastructure. The result is an energy-efficient system that blends harmoniously into the tranquil, natural setting.
Watts supported the design and the application for funding.
Refurbishment schedules for halls of residence
Refurbishment roadmap with measure cost estimate and energy savings forecast for two day care facilities with operational optimization
Award, project and subsidy management
We support public clients, organizations and project sponsors in awarding procedures, managing complex projects and applying for and implementing funding. With clearly structured service modules, we create transparency and efficiency in the process. Our approach: methodical, partnership-based and solution-oriented — for the successful realization of your projects.
- Converting system planning into functional requirements and service descriptions
- Structuring and monitoring tenders and evaluating bids
- Funding advice, funding check and support with applications
- Project management with a focus on cost, deadline and quality control
- Interface coordination and support during commissioning to ensure target achievement
Clear decision-making principles, structured tenders and secured funding. watts manages projects efficiently, coordinates all parties involved and provides support right through to successful commissioning.
Expert competition support for VGV school remodeling competition
Expert support for a VGV school building competition with a focus on indoor air quality, thermal comfort in winter and effective heat protection in summer. Evaluation of the designs with regard to robust low-tech ventilation concepts, passive cooling strategies and energy-efficient building technology as a basis for sustainable, user-oriented planning.
Funding and sub-project management LowEx network TXL
Refurbishment roadmap and implementation support
Energy concept and implementation consulting
Project management heat pump, PV, ventilation
Techno-economic feasibility analysis for the use of air-source heat pumps in the retail center, optimization of ventilation incl. Implementation support with tendering of planning services, control of the implementation of heat pump, photovoltaic and ventilation system conversion.
Funding concepts for local heating networks
We support Berlin’s municipal utilities in the application and implementation of current funding programs for the development of various local heating networks.
Consulting, audits and workshops
- Life cycle and risk analyses (ESG, CRREM, LCC)
- Inventory — Technical due diligence
- Energy audit DIN EN 16247 Implementation
- ISO 50001 Energy management — Implementation
- AGFW heating network certification for primary energy and CO2 factor as well as RE share
- Optimization of electricity and heat purchasing strategies
- Greenhouse gas balancing for companies and public institutions
- Energy and thermal simulations with comfort and consumption analysis
- Storage system consulting and waste heat checks
- Workshops and lectures — renewable energies, energy efficiency, low-tech strategies
- Expert competition support for building technology and sustainability
Energy audit local heating Tegel
Energy audit according to DIN 16247 with implementation plan and calculation of measures according to VALERI. Focus on optimization of local heating network system with generation and distribution.
PV Onsite PPA for logistics, retail, hotel and office
Analysis of requirement criteria in a workshop with subsequent 2‑stage market survey of photovoltaic suppliers. Evaluation of economic and technical performance as well as the operator model option roof lease model with onsite PPA.
Implementation of energy management ISO 50.001
As part of the energy management implementation, organizational consulting is provided, including the development of an energy policy, action plan and legal register. A detailed analysis of the energy flows and waste heat potential is carried out with the development of measures.
Refurbishment schedules for halls of residence
Energy management ISO 50.005
Workshop on energy management implementation in accordance with ISO 50.005 with action plan development
Energy audit with steam check
Energy audit in accordance with DIN 1647 with implementation plan for measures such as steam generation, water heating and cooling waste heat utilization