watts
ProjectsHere you will find an insight into our realized projects, so that you can get an idea of our work.
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.
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.
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.
We are supporting the development of the innovative bidirectional LowEx network on the former site of Berlin Tegel Airport.
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.
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
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.
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.
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 roadmap with measure cost estimate and energy savings forecast for two day care facilities with operational optimization
Workshop on energy management implementation in accordance with ISO 50.005 with action plan development
Energy audit in accordance with DIN 1647 with implementation plan for measures such as steam generation, water heating and cooling waste heat utilization
Energy audit in accordance with DIN 1647 with implementation plan for measures such as steam generation, water heating and cooling waste heat utilization
Refurbishment roadmap with cost estimate for measures and energy savings forecast for the Albestrasse senior citizens’ residence in Berlin
Technical status analysis of the natural gas-based heating and cooling supply. Potential analysis of regenerative heat sources in combination with cooling and photovoltaics for several shopping centers with project management in the implementation phase
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.
PV simulation for 5 retail properties with determination of the share of own electricity use and economic evaluation of roof lease model, tenant electricity model and full feed-in
Greenhouse gas balancing, identification of GHG reduction measures and development of a roadmap for climate-neutral research operations for Scopes 1, 2 and 3
Creation of an energy concept with a focus on power generation via on-site PPA with wind turbine and ground-mounted PV for climate-neutral research operations by 2035 for the IHP — Leibniz Institute for Innovative Microelectronics
Review of solar yield and electricity marketability with profitability assessment
Conducting training courses, workshops and moderating events on the topic of sustainable energy solutions
Simulation-based techno-economic evaluation of different PV variants with battery check
Preliminary examination of the technical feasibility of geothermal energy and ice storage as an environmental heat source with capex and opex assessment
Feasibility study with techno-economic variant evaluation. Objective: fossil-free heating and cooling supply for approx. 37,000 m² of floor space with local environmental heat and photovoltaics
Techno-economic evaluation of energy-saving measures for heating, ventilation, lighting, cooling and building management systems for properties in Hamburg and Lüneburg.
Energy assessment of buildings and identification of energy-saving measures
Conceptual design of a bivalent air heat pump for the Dever Park in Papenburg and implementation of the energy supply contracting tender
Energy audit DIN 16247 for 20 buildings with techno-economic evaluation of measures and feasibility study for the conversion of local heating from natural gas to environmental heat
We support Berlin’s municipal utilities in the application and implementation of current funding programs for the development of various local heating networks.
Techno-economic detailed analysis with identification of measures for the decarbonization of local heating networks and recommendation for action for the BEW funding program
Greenhouse gas balancing, identification of GHG reduction measures and development of a roadmap for climate-neutral research operations
Profitability analysis for decentralized and grid-connected heat pump solutions incl. Cold grid and PV simulation as well as full heating cost comparison
Simulation-based techno-economic evaluation of different PV variants on the district building in Luckenwalde
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.
Energy audit in accordance with DIN 1647 with implementation plan for measures such as steam generation, water heating and cooling waste heat utilization. Techno-economic pre-evaluation for the conversion from natural gas to environmental heat with a heat pump and the installation of a photovoltaic system.
Preparation of the municipal heat transition strategy in accordance with the Heat Planning Act
If you are thinking about whether our work would be suitable for you, just ask. Then let's see if we can make the world more sustainable together.
